Trial Outcomes & Findings for Enhancing Adolescent Substance Abuse Treatment (NCT NCT03249350)

NCT ID: NCT03249350

Last Updated: 2025-11-14

Results Overview

Any positive urine screens for tetrahydrocannabinol (THC), synthetic THC, amphetamines, opiates, phencyclidine (PCP), cocaine, and/or alcohol metabolites (ethyl glucuronide, ethyl sulfate).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

129 participants

Primary outcome timeframe

Baseline to 12 months

Results posted on

2025-11-14

Participant Flow

Study participants include adolescents aged 12-18 years with substance use disorders. All 129 adolescents enrolled in the study met the inclusion criteria and were randomized to treatment. Only adolescents were considered enrolled in the study.

Participant milestones

Participant milestones
Measure
Standard Contingency Management (CM)
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Overall Study
STARTED
66
63
Overall Study
COMPLETED
61
55
Overall Study
NOT COMPLETED
5
8

Reasons for withdrawal

Reasons for withdrawal
Measure
Standard Contingency Management (CM)
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Overall Study
Participant did not initiate treatment
5
8

Baseline Characteristics

Enhancing Adolescent Substance Abuse Treatment

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Total
n=129 Participants
Total of all reporting groups
Age, Continuous
14.76 years
STANDARD_DEVIATION 1.49 • n=10 Participants
14.98 years
STANDARD_DEVIATION 1.36 • n=10 Participants
14.87 years
STANDARD_DEVIATION 1.43 • n=20 Participants
Sex: Female, Male
Female
24 Participants
n=10 Participants
26 Participants
n=10 Participants
50 Participants
n=20 Participants
Sex: Female, Male
Male
42 Participants
n=10 Participants
37 Participants
n=10 Participants
79 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants
n=10 Participants
16 Participants
n=10 Participants
24 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
n=10 Participants
47 Participants
n=10 Participants
104 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=10 Participants
0 Participants
n=10 Participants
1 Participants
n=20 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=10 Participants
2 Participants
n=10 Participants
5 Participants
n=20 Participants
Race (NIH/OMB)
Asian
1 Participants
n=10 Participants
0 Participants
n=10 Participants
1 Participants
n=20 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
n=10 Participants
2 Participants
n=10 Participants
4 Participants
n=20 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=10 Participants
2 Participants
n=10 Participants
3 Participants
n=20 Participants
Race (NIH/OMB)
White
58 Participants
n=10 Participants
52 Participants
n=10 Participants
110 Participants
n=20 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=10 Participants
4 Participants
n=10 Participants
5 Participants
n=20 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=10 Participants
1 Participants
n=10 Participants
1 Participants
n=20 Participants
Region of Enrollment
United States
66 participants
n=10 Participants
63 participants
n=10 Participants
129 participants
n=20 Participants
Total Positive Urine Drug Screen
0.82 count of positive screens
STANDARD_DEVIATION 0.72 • n=10 Participants
0.84 count of positive screens
STANDARD_DEVIATION 0.65 • n=10 Participants
0.83 count of positive screens
STANDARD_DEVIATION 0.69 • n=20 Participants
Any Positive Urine Drug Screen
0.68 proportion of participants
n=10 Participants
0.73 proportion of participants
n=10 Participants
0.71 proportion of participants
n=20 Participants
Global Appraisal of Individual Needs (GAIN) Substance Problem
6.73 units on a scale
STANDARD_DEVIATION 4.33 • n=10 Participants
7.19 units on a scale
STANDARD_DEVIATION 4.73 • n=10 Participants
6.95 units on a scale
STANDARD_DEVIATION 4.52 • n=20 Participants
Global Appraisal of Individual Needs (GAIN) Substance Dependence
3.15 units on a scale
STANDARD_DEVIATION 2.33 • n=10 Participants
3.27 units on a scale
STANDARD_DEVIATION 2.49 • n=10 Participants
3.21 units on a scale
STANDARD_DEVIATION 2.4 • n=20 Participants
Global Appraisal of Individual Needs (GAIN) Substance Frequency
22.89 units on a scale
STANDARD_DEVIATION 17.37 • n=10 Participants
21.9 units on a scale
STANDARD_DEVIATION 17.42 • n=10 Participants
22.4 units on a scale
STANDARD_DEVIATION 17.3 • n=20 Participants
Child Behavior Checklist (CBCL) - Externalizing Youth Report
22.88 units on a scale
STANDARD_DEVIATION 10.19 • n=10 Participants
24.6 units on a scale
STANDARD_DEVIATION 11.09 • n=10 Participants
23.72 units on a scale
STANDARD_DEVIATION 10.63 • n=20 Participants
Child Behavior Checklist (CBCL) - Externalizing Parent Report
31.95 units on a scale
STANDARD_DEVIATION 15.18 • n=10 Participants
28.03 units on a scale
STANDARD_DEVIATION 13.91 • n=10 Participants
30.04 units on a scale
STANDARD_DEVIATION 14.65 • n=20 Participants
Peer Delinquency
15.42 units on a scale
STANDARD_DEVIATION 13.75 • n=10 Participants
14.83 units on a scale
STANDARD_DEVIATION 10.74 • n=10 Participants
15.13 units on a scale
STANDARD_DEVIATION 12.33 • n=20 Participants
Positive Peer Activity - Youth Report
16.62 units on a scale
STANDARD_DEVIATION 5.92 • n=10 Participants
15.16 units on a scale
STANDARD_DEVIATION 5.94 • n=10 Participants
15.91 units on a scale
STANDARD_DEVIATION 12.33 • n=20 Participants
Go-No-Go Percent Correct
0.74 percent correct
STANDARD_DEVIATION 0.15 • n=10 Participants
0.74 percent correct
STANDARD_DEVIATION 0.15 • n=10 Participants
0.74 percent correct
STANDARD_DEVIATION 0.15 • n=20 Participants
Positive Peer Activity - Parent Report
9.8 units on a scale
STANDARD_DEVIATION 5.29 • n=10 Participants
10.51 units on a scale
STANDARD_DEVIATION 6.56 • n=10 Participants
10.15 units on a scale
STANDARD_DEVIATION 5.93 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Involvement - Youth
30.53 units on a scale
STANDARD_DEVIATION 7.38 • n=10 Participants
30.79 units on a scale
STANDARD_DEVIATION 6.58 • n=10 Participants
30.66 units on a scale
STANDARD_DEVIATION 6.98 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Positive Parenting - Youth
19.82 units on a scale
STANDARD_DEVIATION 4.89 • n=10 Participants
19.57 units on a scale
STANDARD_DEVIATION 4.51 • n=10 Participants
19.7 units on a scale
STANDARD_DEVIATION 4.69 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Poor Monitoring - Youth
25.15 units on a scale
STANDARD_DEVIATION 6.42 • n=10 Participants
24.63 units on a scale
STANDARD_DEVIATION 6.38 • n=10 Participants
24.9 units on a scale
STANDARD_DEVIATION 6.38 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Inconsistent Discipline- Youth
14.8 units on a scale
STANDARD_DEVIATION 5.07 • n=10 Participants
14.6 units on a scale
STANDARD_DEVIATION 4.48 • n=10 Participants
14.71 units on a scale
STANDARD_DEVIATION 4.77 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Corporal Punishment - Youth
5.11 units on a scale
STANDARD_DEVIATION 1.84 • n=10 Participants
5.43 units on a scale
STANDARD_DEVIATION 1.54 • n=10 Participants
5.26 units on a scale
STANDARD_DEVIATION 1.7 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Involvement - Parent
24.85 units on a scale
STANDARD_DEVIATION 4.89 • n=10 Participants
25.46 units on a scale
STANDARD_DEVIATION 5.13 • n=10 Participants
25.15 units on a scale
STANDARD_DEVIATION 5 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Positive Parenting - Parent
18.09 units on a scale
STANDARD_DEVIATION 3.28 • n=10 Participants
17.16 units on a scale
STANDARD_DEVIATION 3.69 • n=10 Participants
17.64 units on a scale
STANDARD_DEVIATION 3.5 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Poor Monitoring - Parent
14.35 units on a scale
STANDARD_DEVIATION 6.26 • n=10 Participants
14.89 units on a scale
STANDARD_DEVIATION 6.48 • n=10 Participants
14.61 units on a scale
STANDARD_DEVIATION 6.35 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Inconsistent Discipline- Parent
10.09 units on a scale
STANDARD_DEVIATION 4.6 • n=10 Participants
10.62 units on a scale
STANDARD_DEVIATION 4.03 • n=10 Participants
10.35 units on a scale
STANDARD_DEVIATION 4.32 • n=20 Participants
Alabama Parenting Questionnaire (APQ) Corporal Punishment - Parent
1.95 units on a scale
STANDARD_DEVIATION 1.34 • n=10 Participants
2.11 units on a scale
STANDARD_DEVIATION 1.25 • n=10 Participants
2.03 units on a scale
STANDARD_DEVIATION 1.29 • n=20 Participants
Early Adolescent Temperament Questionnaire (EATQ) Effortful Control Factor - Youth
2.96 units on a scale
STANDARD_DEVIATION 0.63 • n=10 Participants
2.8 units on a scale
STANDARD_DEVIATION 0.53 • n=10 Participants
2.88 units on a scale
STANDARD_DEVIATION 0.59 • n=20 Participants
Early Adolescent Temperament Questionnaire (EATQ) Effortful Control Factor - Parent
2.4 units on a scale
STANDARD_DEVIATION 0.6 • n=10 Participants
2.44 units on a scale
STANDARD_DEVIATION 0.54 • n=10 Participants
2.42 units on a scale
STANDARD_DEVIATION 0.57 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Drive - Youth
11.3 units on a scale
STANDARD_DEVIATION 2.41 • n=10 Participants
11.19 units on a scale
STANDARD_DEVIATION 2.31 • n=10 Participants
11.25 units on a scale
STANDARD_DEVIATION 2.36 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Fun Seeking - Youth
11.86 units on a scale
STANDARD_DEVIATION 1.8 • n=10 Participants
12.46 units on a scale
STANDARD_DEVIATION 1.92 • n=10 Participants
12.16 units on a scale
STANDARD_DEVIATION 1.88 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Reward Responsiveness - Youth
15.35 units on a scale
STANDARD_DEVIATION 2.43 • n=10 Participants
15.41 units on a scale
STANDARD_DEVIATION 2.32 • n=10 Participants
15.38 units on a scale
STANDARD_DEVIATION 2.37 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Drive - Parent
11.91 units on a scale
STANDARD_DEVIATION 2.05 • n=10 Participants
11.44 units on a scale
STANDARD_DEVIATION 2.6 • n=10 Participants
11.68 units on a scale
STANDARD_DEVIATION 2.34 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Fun Seeking - Parent
12 units on a scale
STANDARD_DEVIATION 1.72 • n=10 Participants
11.84 units on a scale
STANDARD_DEVIATION 1.95 • n=10 Participants
11.92 units on a scale
STANDARD_DEVIATION 1.83 • n=20 Participants
Behavioral Inhibition and Behavioral Activation Systems (BIS-BAS) Reward Responsiveness - Parent
15.47 units on a scale
STANDARD_DEVIATION 2.19 • n=10 Participants
15.03 units on a scale
STANDARD_DEVIATION 2.36 • n=10 Participants
15.26 units on a scale
STANDARD_DEVIATION 2.28 • n=20 Participants
Balloon Analog Risk Task (BART) Number of Pumps
48.49 pumps
STANDARD_DEVIATION 12.17 • n=10 Participants
51.72 pumps
STANDARD_DEVIATION 13.33 • n=10 Participants
50.05 pumps
STANDARD_DEVIATION 12.79 • n=20 Participants

PRIMARY outcome

Timeframe: Baseline to 12 months

Any positive urine screens for tetrahydrocannabinol (THC), synthetic THC, amphetamines, opiates, phencyclidine (PCP), cocaine, and/or alcohol metabolites (ethyl glucuronide, ethyl sulfate).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
0.53 positive test per timepoint
Standard Error 0.51
0.37 positive test per timepoint
Standard Error 0.49
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
0.44 positive test per timepoint
Standard Error 0.50
0.45 positive test per timepoint
Standard Error 0.51
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline timepoint
0.68 positive test per timepoint
Standard Error 0.47
0.73 positive test per timepoint
Standard Error 0.45
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
0.60 positive test per timepoint
Standard Error 0.49
0.55 positive test per timepoint
Standard Error 0.50
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
0.51 positive test per timepoint
Standard Error 0.51
0.41 positive test per timepoint
Standard Error 0.50
Changes From Baseline Scores Compared to Post-Treatment Scores, Any Positive Youth Urine Drug/Alcohol Screens (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
0.50 positive test per timepoint
Standard Error 0.51
0.54 positive test per timepoint
Standard Error 0.51

SECONDARY outcome

Timeframe: Baseline to 12 months

Youth problem behaviors as measured by the Child Behavior Checklist (parent-report) and the Youth Self Report. This is a 35-item Subscale of the Child Behavior Checklist (CBCL) measuring externalizing behaviors from the youth's self-report. It assesses outward-directed behaviors such as aggression, defiance, hyperactivity, and rule-breaking. Scores range from 0 to 70, where higher scores indicate the presence of more externalizing behavior problems.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
22.88 score on a scale
Standard Deviation 10.19
24.6 score on a scale
Standard Deviation 11.09
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 Months
18.07 score on a scale
Standard Deviation 11.09
19.15 score on a scale
Standard Deviation 10.35
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 Months
17.05 score on a scale
Standard Deviation 9.94
16.53 score on a scale
Standard Deviation 11.23
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 Months
16.26 score on a scale
Standard Deviation 8.97
15.06 score on a scale
Standard Deviation 9.79
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 Months
16.06 score on a scale
Standard Deviation 9.02
13.59 score on a scale
Standard Deviation 11.45
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Problem Behaviors (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 Months
15.82 score on a scale
Standard Deviation 10.89
14.4 score on a scale
Standard Deviation 11.07

SECONDARY outcome

Timeframe: Course of treatment (length varied by participant)

All treatment sessions were audio-recorded. A random selection of tapes was coded by trained raters to indicate the presence or absence of CM treatment components. Scores on this outcome reflect the proportion of components delivered, with higher scores indicating the presence of more treatment components.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Youth Receipt of Required Contingency Management (CM) Treatment Components.
Cognitive Behavioral Components
0.16 proportion of components received
Standard Error 0.01
0.11 proportion of components received
Standard Error 0.01
Youth Receipt of Required Contingency Management (CM) Treatment Components.
Behavioral Modification Components
0.33 proportion of components received
Standard Error 0.01
0.37 proportion of components received
Standard Error 0.01

SECONDARY outcome

Timeframe: Baseline to 12 months

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6-30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through parents' self-reports of their own behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
10.09 score on a scale
Standard Deviation 4.6
10.62 score on a scale
Standard Deviation 4.03
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
9.63 score on a scale
Standard Deviation 4.08
9.27 score on a scale
Standard Deviation 3.59
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
9.7 score on a scale
Standard Deviation 4.93
9.11 score on a scale
Standard Deviation 4.37
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
9.55 score on a scale
Standard Deviation 4.52
7.93 score on a scale
Standard Deviation 3.67
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
8.07 score on a scale
Standard Deviation 4.52
7.56 score on a scale
Standard Deviation 3.91
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale - Parent Report(Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
9.48 score on a scale
Standard Deviation 4.27
7.4 score on a scale
Standard Deviation 3.83

SECONDARY outcome

Timeframe: Baseline to 12 months

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through parents' self-reports of their own behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
18.09 Scores on a scale
Standard Deviation 3.28
17.16 Scores on a scale
Standard Deviation 3.69
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
18.27 Scores on a scale
Standard Deviation 3.72
17.06 Scores on a scale
Standard Deviation 3.62
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
17.66 Scores on a scale
Standard Deviation 4.02
17.48 Scores on a scale
Standard Deviation 3.17
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
18.45 Scores on a scale
Standard Deviation 3.85
18.05 Scores on a scale
Standard Deviation 3.22
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
18.22 Scores on a scale
Standard Deviation 3.99
18.15 Scores on a scale
Standard Deviation 3.52
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
18.55 Scores on a scale
Standard Deviation 3.27
18.14 Scores on a scale
Standard Deviation 4.27

SECONDARY outcome

Timeframe: Baseline to 12 months

Parent management practices as measured by the Alabama Parenting Questionnaire (APQ) (parent-report). A 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through parents' self-reports of their own behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
14.35 score on a scale
Standard Deviation 6.26
14.89 score on a scale
Standard Deviation 6.48
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
14.29 score on a scale
Standard Deviation 5.96
14.73 score on a scale
Standard Deviation 7.28
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
13.59 score on a scale
Standard Deviation 6.69
14.3 score on a scale
Standard Deviation 7.39
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
13.6 score on a scale
Standard Deviation 7.44
13.02 score on a scale
Standard Deviation 6.02
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
11.83 score on a scale
Standard Deviation 6.01
12.03 score on a scale
Standard Deviation 6.27
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
13.09 score on a scale
Standard Deviation 7.07
12.69 score on a scale
Standard Deviation 6.92

SECONDARY outcome

Timeframe: Baseline to 12 months

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' discipline activity and the variability in rule enforcement and consequences. Scores range from 6 -30. High scores suggest unpredictable enforcement of rules, which can undermine authority and increase behavioral issues. This is measured through youths' reports on parents' behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
14.8 score on a scale
Standard Deviation 5.07
14.6 score on a scale
Standard Deviation 4.48
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
14.37 score on a scale
Standard Deviation 4.56
13.63 score on a scale
Standard Deviation 4.28
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
13.58 score on a scale
Standard Deviation 4.92
13.56 score on a scale
Standard Deviation 3.47
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
13.09 score on a scale
Standard Deviation 4.75
12.65 score on a scale
Standard Deviation 4.12
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
12.74 score on a scale
Standard Deviation 5.24
13.09 score on a scale
Standard Deviation 3.87
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Inconsistent Discipline Subscale (Youth Report) (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
13.19 score on a scale
Standard Deviation 5.59
12.69 score on a scale
Standard Deviation 3.49

SECONDARY outcome

Timeframe: Baseline to 12 months

A 6-item subscale of the Alabama Parenting Questionnaire (APQ) that measures positive parenting through the frequency of praise and reinforcement. Scores range from 6-30. High scores reflect the frequent use of praise and rewards, which are associated with better child compliance and emotional well-being. This is measured through youths' report on parents' behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
19.82 score on a scale
Standard Deviation 4.89
19.57 score on a scale
Standard Deviation 4.51
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
18.93 score on a scale
Standard Deviation 5.32
19.59 score on a scale
Standard Deviation 5.36
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
19.85 score on a scale
Standard Deviation 5.09
19.41 score on a scale
Standard Deviation 4.63
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
19.83 score on a scale
Standard Deviation 5.48
19.79 score on a scale
Standard Deviation 5.08
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
19.26 score on a scale
Standard Deviation 5.68
20.13 score on a scale
Standard Deviation 5.45
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Positive Parenting Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
19.19 score on a scale
Standard Deviation 5.39
19.69 score on a scale
Standard Deviation 5.28

SECONDARY outcome

Timeframe: Baseline to 12 months

A 10-item subscale of the Alabama Parenting Questionnaire (APQ) that measures parents' monitoring and supervision of their child's activities and whereabouts. Scores range from 10-50. Higher scores indicate less parental awareness of the child's activities. Elevated scores are associated with an increased risk of delinquency and externalizing behaviors. This is measured through youths' reports on parents' behaviors.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
25.15 score on a scale
Standard Deviation 6.42
24.63 score on a scale
Standard Deviation 6.38
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
23.04 score on a scale
Standard Deviation 6.43
21.59 score on a scale
Standard Deviation 6.87
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
21.98 score on a scale
Standard Deviation 6.27
22.69 score on a scale
Standard Deviation 7.04
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
21.34 score on a scale
Standard Deviation 6.81
21.15 score on a scale
Standard Deviation 6.25
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
21.38 score on a scale
Standard Deviation 6.76
23.28 score on a scale
Standard Deviation 7.3
Changes From Baseline Scores Compared to Post-Treatment Scores for Parent Management - Poor Monitoring Subscale - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
22.46 score on a scale
Standard Deviation 7.5
22.46 score on a scale
Standard Deviation 7.02

SECONDARY outcome

Timeframe: Baseline to 12 months

Frequency of substance use as measured by the Global Appraisal of Individual Needs (youth-report). The Global Appraisal of Individual Needs (GAIN) Frequency Subscale measures the frequency of substance use of 16 different substances over the past 30 days. Scores range from 0 to 100, where higher scores indicate higher frequency of use.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
22.89 score on a scale
Standard Error 17.37
21.9 score on a scale
Standard Error 17.42
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
13.05 score on a scale
Standard Error 16.09
14.51 score on a scale
Standard Error 15.88
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
12.18 score on a scale
Standard Error 16.94
10.48 score on a scale
Standard Error 15.04
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
11.89 score on a scale
Standard Error 15.11
11.15 score on a scale
Standard Error 12.44
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
12.85 score on a scale
Standard Error 15.63
8.06 score on a scale
Standard Error 14.43
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Use Frequency (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
13.83 score on a scale
Standard Error 18.76
7.51 score on a scale
Standard Error 11.88

SECONDARY outcome

Timeframe: Baseline to 12 months

The Global Appraisal of Individual Needs (GAIN) Substance Problems Subscale measures the presence of each DSM-V criterion for a substance use disorder and lower severity symptoms. Scores range from 0 to 16, where higher scores indicate the presence of more criterion/symptoms.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
1.95 score on a scale
Standard Deviation 2.79
1.43 score on a scale
Standard Deviation 2.36
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
6.73 score on a scale
Standard Deviation 4.33
7.19 score on a scale
Standard Deviation 4.73
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
3.91 score on a scale
Standard Deviation 3.94
3.28 score on a scale
Standard Deviation 3.79
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
3.33 score on a scale
Standard Deviation 3.89
2.06 score on a scale
Standard Deviation 3.17
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
2.51 score on a scale
Standard Deviation 3.17
2.88 score on a scale
Standard Deviation 3.73
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Substance Problems (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
3.14 score on a scale
Standard Deviation 3.87
1.59 score on a scale
Standard Deviation 2.93

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
11.3 score on a scale
Standard Deviation 2.41
11.19 score on a scale
Standard Deviation 2.31
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
11.17 score on a scale
Standard Deviation 2.12
11.02 score on a scale
Standard Deviation 2.41
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
11.23 score on a scale
Standard Deviation 2.01
11.09 score on a scale
Standard Deviation 2.43
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
10.8 score on a scale
Standard Deviation 2.4
10.91 score on a scale
Standard Deviation 2.3
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
10.91 score on a scale
Standard Deviation 2.34
11.16 score on a scale
Standard Deviation 2.17
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
11.37 score on a scale
Standard Deviation 1.96
10.82 score on a scale
Standard Deviation 2.14

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
11.86 score on a scale
Standard Deviation 1.8
12.46 score on a scale
Standard Deviation 1.92
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
12.04 score on a scale
Standard Deviation 2.03
12.15 score on a scale
Standard Deviation 1.98
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
12.03 score on a scale
Standard Deviation 2.02
12.31 score on a scale
Standard Deviation 1.75
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
11.57 score on a scale
Standard Deviation 2.4
12.41 score on a scale
Standard Deviation 1.99
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
11.97 score on a scale
Standard Deviation 2.28
12.34 score on a scale
Standard Deviation 1.54
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
12.03 score on a scale
Standard Deviation 1.5
12.53 score on a scale
Standard Deviation 1.94

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (youth report) scales. Youth report of youth risk taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
15.35 score on a scale
Standard Deviation 2.43
15.41 score on a scale
Standard Deviation 2.32
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
15.63 score on a scale
Standard Deviation 2.38
15.26 score on a scale
Standard Deviation 1.95
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
15.48 score on a scale
Standard Deviation 2.24
15.69 score on a scale
Standard Deviation 1.97
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
14.51 score on a scale
Standard Deviation 3.02
15.44 score on a scale
Standard Deviation 1.89
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
15.2 score on a scale
Standard Deviation 2.68
15.88 score on a scale
Standard Deviation 1.81
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
15.63 score on a scale
Standard Deviation 2.05
15.23 score on a scale
Standard Deviation 1.47

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Drive subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (drive).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
11.19 score on a scale
Standard Deviation 2.05
11.44 score on a scale
Standard Deviation 2.6
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
11.92 score on a scale
Standard Deviation 2.5
11.4 score on a scale
Standard Deviation 2.53
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
11.93 score on a scale
Standard Deviation 2.87
11.48 score on a scale
Standard Deviation 2.77
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
12.02 score on a scale
Standard Deviation 2.59
11.51 score on a scale
Standard Deviation 2.75
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
12.05 score on a scale
Standard Deviation 2.26
11.64 score on a scale
Standard Deviation 2.48
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Drive - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
12.09 score on a scale
Standard Deviation 1.91
11.19 score on a scale
Standard Deviation 2.42

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk taking as assessed by the sum score on the Fun Seeking subscale from the Behavioral Inhibition System and Behavioral Activation System scales. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 4 to 16. Higher scores equal higher youth behavioral activation (fun seeking).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
12.00 score on a scale
Standard Deviation 1.72
11.84 score on a scale
Standard Deviation 1.95
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
11.8 score on a scale
Standard Deviation 2.12
11.54 score on a scale
Standard Deviation 2.16
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
12.16 score on a scale
Standard Deviation 2.01
11.86 score on a scale
Standard Deviation 2.21
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
12.38 score on a scale
Standard Deviation 1.85
11.49 score on a scale
Standard Deviation 2.15
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
12.45 score on a scale
Standard Deviation 2.12
11.64 score on a scale
Standard Deviation 1.78
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Fun Seeking - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
11.93 score on a scale
Standard Deviation 2.16
11.64 score on a scale
Standard Deviation 1.76

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - risk taking as measured by the Behavioral Inhibition System and Behavioral Activation System (parent report) scales. Parent report of youth risk-taking as assessed by the sum score on the Reward Responsiveness subscale from the Behavioral Inhibition System and Behavioral Activation System. Scores on individual items and subscale range from 1=Strongly agree to 4=Strongly disagree and scores range from 5 to 20. Higher scores equal higher youth behavioral activation (reward responsiveness).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
15.47 score on a scale
Standard Deviation 2.19
15.03 score on a scale
Standard Deviation 2.36
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
15.29 score on a scale
Standard Deviation 2.05
15.31 score on a scale
Standard Deviation 1.8
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
15.8 score on a scale
Standard Deviation 2.08
15.09 score on a scale
Standard Deviation 2.12
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
15.98 score on a scale
Standard Deviation 2.14
15.34 score on a scale
Standard Deviation 2.08
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
16.1 score on a scale
Standard Deviation 2.21
15.13 score on a scale
Standard Deviation 2.03
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - Reward Responsiveness - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
15.55 score on a scale
Standard Deviation 2.26
15.62 score on a scale
Standard Deviation 1.91

SECONDARY outcome

Timeframe: Baseline to 12 months

Youth performance on computerized Balloon Analogue Risk Task (automatic version) that requires participants to enter the number of times that they want to pump to inflate a computer-generated balloon, with participants earning a point for each pump but losing all of the points if the balloon pops before the selected number of pumps. The mean number of pumps on all trials is reported. Scores range from 0 to 126. Higher scores equal higher youth risk taking behavior.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
48.49 pumps
Standard Deviation 12.17
51.72 pumps
Standard Deviation 13.33
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
51.29 pumps
Standard Deviation 10.3
53.86 pumps
Standard Deviation 11.41
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
49.88 pumps
Standard Deviation 11.85
53.14 pumps
Standard Deviation 11.71
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
48.35 pumps
Standard Deviation 10.37
56.29 pumps
Standard Deviation 14.46
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
54.02 pumps
Standard Deviation 14.9
53.90 pumps
Standard Deviation 13.13
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Risk Taking - BART (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
49.75 pumps
Standard Deviation 13.67
52.09 pumps
Standard Deviation 13.92

SECONDARY outcome

Timeframe: Baseline to 12 months

Behavioral regulation - inhibitory control as measured by the Early Adolescent Temperament Questionnaire-Revised (youth- and parent-report) and the Go/No Go Task.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
3.17 score on a scale
Standard Deviation 0.56
3.03 score on a scale
Standard Deviation 0.50
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
2.96 score on a scale
Standard Deviation 0.63
2.8 score on a scale
Standard Deviation 0.53
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
3.0 score on a scale
Standard Deviation 0.47
2.92 score on a scale
Standard Deviation 0.57
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
3.01 score on a scale
Standard Deviation 0.56
3.0 score on a scale
Standard Deviation 0.52
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
3.04 score on a scale
Standard Deviation 0.48
3.06 score on a scale
Standard Deviation 0.56
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Youth (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
3.12 score on a scale
Standard Deviation 0.56
3.07 score on a scale
Standard Deviation 0.45

SECONDARY outcome

Timeframe: Baseline to 12 months

Parent report of youth inhibitory control as assessed by the mean score on the Effortful Control factor from the Early Adolescent Temperament Questionnaire. Scores on individual items and factor range from 1=Very false to 5=Very true. Higher scores equal higher youth effortful control.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
2.4 score on a scale
Standard Deviation 0.6
2.44 score on a scale
Standard Deviation 0.54
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
2.47 score on a scale
Standard Deviation 0.62
2.54 score on a scale
Standard Deviation 0.56
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
2.45 score on a scale
Standard Deviation 0.59
2.55 score on a scale
Standard Deviation 0.60
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
2.38 score on a scale
Standard Deviation 0.59
2.59 score on a scale
Standard Deviation 0.59
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
2.42 score on a scale
Standard Deviation 0.6
2.68 score on a scale
Standard Deviation 0.66
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - EATQ - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
2.48 score on a scale
Standard Deviation 0.61
2.73 score on a scale
Standard Deviation 0.72

SECONDARY outcome

Timeframe: Baseline to 12 months

Youth performance of youth inhibitory control as assessed by the percent correct on no go trials on computerized go/no-go task.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
0.74 percent correct
Standard Deviation 0.15
0.74 percent correct
Standard Deviation 0.15
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
0.75 percent correct
Standard Deviation 0.15
0.71 percent correct
Standard Deviation 0.16
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
0.73 percent correct
Standard Deviation 0.14
0.73 percent correct
Standard Deviation 0.15
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
0.75 percent correct
Standard Deviation 0.14
0.72 percent correct
Standard Deviation 0.17
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
0.77 percent correct
Standard Deviation 0.13
0.75 percent correct
Standard Deviation 0.14
Changes From Baseline Scores Compared to Post-Treatment Scores for Youth Behavioral Regulation - Inhibitory Control - Go No Go Performance (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
0.73 percent correct
Standard Deviation 0.15
0.76 percent correct
Standard Deviation 0.11

SECONDARY outcome

Timeframe: Baseline to 12 months

Peer relations (association with peers who engage in delinquent behaviors \& prosocial activities) as measured by the Peer Relations Questionnaire (youth- and parent-report).

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline
15.42 score on a scale
Standard Error 13.75
14.83 score on a scale
Standard Error 10.74
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months
9.89 score on a scale
Standard Error 9.44
10.06 score on a scale
Standard Error 10.97
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months
9.38 score on a scale
Standard Error 9.8
11.41 score on a scale
Standard Error 14.28
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months
8.8 score on a scale
Standard Error 8.29
8.88 score on a scale
Standard Error 10.38
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months
8.06 score on a scale
Standard Error 7.59
9.91 score on a scale
Standard Error 11.75
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Peer Delinquency (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months
9.45 score on a scale
Standard Error 12.56
7.43 score on a scale
Standard Error 8.71

SECONDARY outcome

Timeframe: Baseline to 12 months

The Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the youth's self-report.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Youth
16.62 score on a scale
Standard Deviation 5.92
15.16 score on a scale
Standard Deviation 5.94
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Youth
17.37 score on a scale
Standard Deviation 6.02
16.0 score on a scale
Standard Deviation 5.63
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Youth
17.2 score on a scale
Standard Deviation 6.01
16.28 score on a scale
Standard Deviation 7.12
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Youth
17.11 score on a scale
Standard Deviation 5.66
16.76 score on a scale
Standard Deviation 6.16
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Youth
16.66 score on a scale
Standard Deviation 5.95
18.19 score on a scale
Standard Deviation 7.38
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Youth Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Youth
17.97 score on a scale
Standard Deviation 6.5
15.71 score on a scale
Standard Deviation 5.51

SECONDARY outcome

Timeframe: Baseline to 12 months

The Positive Peer Activity Scale of the Pittsburgh Youth Study Interview comprises 10 questions rated on a 4-point scale (0 = none to 4 = all) concerning the proportion of friends of the subject that have engaged in a variety of prosocial activities over the past 30 days. Scores range from 0 to 40, where higher scores indicate a higher proportion of prosocial friends. This is measured from the parent's report on youth's friends.

Outcome measures

Outcome measures
Measure
Standard Contingency Management (CM)
n=66 Participants
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 Participants
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
Baseline - Parent
9.8 score on a scale
Standard Deviation 5.29
10.51 score on a scale
Standard Deviation 6.56
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
2 months - Parent
10.41 score on a scale
Standard Deviation 5.22
11.4 score on a scale
Standard Deviation 8.19
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
4 months - Parent
11.14 score on a scale
Standard Deviation 6.04
11.0 score on a scale
Standard Deviation 7.4
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
6 months - Parent
10.88 score on a scale
Standard Deviation 5.65
12.24 score on a scale
Standard Deviation 7.02
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
9 months - Parent
11.4 score on a scale
Standard Deviation 4.4
13.90 score on a scale
Standard Deviation 8.85
Changes From Baseline Scores Compared to Post-Treatment Scores for Peer Relations - Positive Peer Activity - Parent Report (Measured at 0, 2, 4, 6, 9, & 12 Months).
12 months - Parent
12.18 score on a scale
Standard Deviation 7.15
14.39 score on a scale
Standard Deviation 7.4

Adverse Events

Standard Contingency Management (CM)

Serious events: 7 serious events
Other events: 7 other events
Deaths: 3 deaths

Enhanced Contingency Management (CM+)

Serious events: 7 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Standard Contingency Management (CM)
n=66 participants at risk
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 participants at risk
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Psychiatric disorders
Psychiatric Facility Admission
1.5%
1/66 • Number of events 1 • 1 year post-baseline for each participant.
1.6%
1/63 • Number of events 1 • 1 year post-baseline for each participant.
Injury, poisoning and procedural complications
Non-fatal Substance Use Overdose
7.6%
5/66 • Number of events 5 • 1 year post-baseline for each participant.
3.2%
2/63 • Number of events 2 • 1 year post-baseline for each participant.
Psychiatric disorders
Suicide Attempt
1.5%
1/66 • Number of events 1 • 1 year post-baseline for each participant.
3.2%
2/63 • Number of events 2 • 1 year post-baseline for each participant.
Psychiatric disorders
Behavioral Escalation
0.00%
0/66 • 1 year post-baseline for each participant.
1.6%
1/63 • Number of events 1 • 1 year post-baseline for each participant.
Injury, poisoning and procedural complications
Physical Injury
0.00%
0/66 • 1 year post-baseline for each participant.
1.6%
1/63 • Number of events 1 • 1 year post-baseline for each participant.

Other adverse events

Other adverse events
Measure
Standard Contingency Management (CM)
n=66 participants at risk
This group will receive standard CM for adolescent substance abuse. Standard Contingency Management (CM): CM utilizes behavior modification \& cognitive behavioral strategies to target adolescent substance use. Protocol components are as follows: (a) The provider introduces CM to the youth and caregiver and engages them in the intervention; (b) The provider conducts Antecedent-Behavior-Consequence (ABC) assessments of the youth's AOD use with the youth and caregiver; (c) Based on the results of the ABC assessments, self-management planning and drug refusal skills training are implemented by the provider in collaboration with the youth and caregiver; (d) Concurrently, a point and level system contract is established with the family, which provides the youth with rewards/privileges for negative drug and alcohol tests and disincentives (e.g., extra chores) for positive tests. Until continued abstinence is achieved, components "b" through "d" are repeated; (e) The provider collaborates with the family to develop plans for sustaining long-term abstinence. Typical duration of CM is 12-16 weeks.
Enhanced Contingency Management (CM+)
n=63 participants at risk
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely. Enhanced Contingency Management (CM+): The CM+ protocol adds the behavioral assessment and teaching system from Parent Management Training Oregon (PMTO) to standard CM to enhance parent's skill acquisition more intensely. PMTO's behavioral assessment and teaching system uses three processes to bring about changes in parenting: daily parent reports on youth behavior, anti-coercive problem-solving, and structured learning and in vivo practice of new parenting techniques.
Social circumstances
Mandatory Child Abuse Report
9.1%
6/66 • Number of events 6 • 1 year post-baseline for each participant.
7.9%
5/63 • Number of events 5 • 1 year post-baseline for each participant.
Social circumstances
Mandatory Report to Law Enforcement
1.5%
1/66 • Number of events 1 • 1 year post-baseline for each participant.
0.00%
0/63 • 1 year post-baseline for each participant.

Additional Information

Dr. Mike McCart

Oregon Social Learning Center

Phone: 541-485-2711

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place