Trial Outcomes & Findings for A Stage-Based Expert System for Teen Dating Violence Prevention (NCT NCT02458365)
NCT ID: NCT02458365
Last Updated: 2016-04-21
Results Overview
A 30-item measure assessing five types of dating violence perpetration and victimization was developed to meet specific needs of this research (Levesque, 2007). Alphas for the five 3-item perpetrator scales are: .88 for emotional mistreatment, .87 for controlling behavior, .91 for threats, .92 for physical violence, and .94 for sexual coercion. At follow-up, in the spring and fall of 2010, the measure assessed dating violence perpetrated and experienced since January 1, 2010. Given the hierarchical structure of the perpetration measure, the emotional mistreatment and controlling behavior scales were combined to represent emotional dating violence perpetration, and the threats, physical violence, and sexual coercion scales were combined to represent physical perpetration. Given extreme non-normal distributions, the two measures were then dichotomized. One or more incidents of physical perpetration during the period in question were coded as "yes," and no incidents as "no".
COMPLETED
PHASE2
3901 participants
One year
2016-04-21
Participant Flow
Participant milestones
| Measure |
Intervention: Teen Choices
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health In Motion
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Overall Study
STARTED
|
2000
|
1901
|
|
Overall Study
COMPLETED
|
1723
|
1607
|
|
Overall Study
NOT COMPLETED
|
277
|
294
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
A Stage-Based Expert System for Teen Dating Violence Prevention
Baseline characteristics by cohort
| Measure |
Intevention: Teen Choices
n=2000 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health In Motion
n=1901 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
Total
n=3901 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Categorical
<=18 years
|
1989 Participants
n=5 Participants
|
1893 Participants
n=7 Participants
|
3882 Participants
n=5 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
11 Participants
n=5 Participants
|
8 Participants
n=7 Participants
|
19 Participants
n=5 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Sex: Female, Male
Female
|
1028 Participants
n=5 Participants
|
988 Participants
n=7 Participants
|
2016 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
972 Participants
n=5 Participants
|
913 Participants
n=7 Participants
|
1885 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
218 Participants
n=5 Participants
|
186 Participants
n=7 Participants
|
404 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
1782 Participants
n=5 Participants
|
1715 Participants
n=7 Participants
|
3497 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
14 Participants
n=5 Participants
|
9 Participants
n=7 Participants
|
23 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Asian
|
39 Participants
n=5 Participants
|
61 Participants
n=7 Participants
|
100 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
7 Participants
n=5 Participants
|
12 Participants
n=7 Participants
|
19 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Black or African American
|
54 Participants
n=5 Participants
|
107 Participants
n=7 Participants
|
161 Participants
n=5 Participants
|
|
Race (NIH/OMB)
White
|
1613 Participants
n=5 Participants
|
1447 Participants
n=7 Participants
|
3060 Participants
n=5 Participants
|
|
Race (NIH/OMB)
More than one race
|
72 Participants
n=5 Participants
|
87 Participants
n=7 Participants
|
159 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
201 Participants
n=5 Participants
|
178 Participants
n=7 Participants
|
379 Participants
n=5 Participants
|
|
Region of Enrollment
United States
|
2000 participants
n=5 Participants
|
1901 participants
n=7 Participants
|
3901 participants
n=5 Participants
|
PRIMARY outcome
Timeframe: One yearPopulation: Participants who were exposed to at least minimal risk for dating violence -- i.e., who had experienced or perpetrated emotional or physical dating violence in the year prior to the study, who were current daters at baseline, or who dated during the follow-up period.
A 30-item measure assessing five types of dating violence perpetration and victimization was developed to meet specific needs of this research (Levesque, 2007). Alphas for the five 3-item perpetrator scales are: .88 for emotional mistreatment, .87 for controlling behavior, .91 for threats, .92 for physical violence, and .94 for sexual coercion. At follow-up, in the spring and fall of 2010, the measure assessed dating violence perpetrated and experienced since January 1, 2010. Given the hierarchical structure of the perpetration measure, the emotional mistreatment and controlling behavior scales were combined to represent emotional dating violence perpetration, and the threats, physical violence, and sexual coercion scales were combined to represent physical perpetration. Given extreme non-normal distributions, the two measures were then dichotomized. One or more incidents of physical perpetration during the period in question were coded as "yes," and no incidents as "no".
Outcome measures
| Measure |
Intervention: Teen Choices
n=1389 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=1216 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Perpetrating Physical Dating Violence During Follow-up
|
240 participants
|
307 participants
|
SECONDARY outcome
Timeframe: One yearPopulation: Participants who were exposed to at least minimal risk for dating violence -- i.e., who had experienced or perpetrated emotional or physical dating violence in the year prior to the study, who were current daters at baseline, or who dated during the follow-up period.
See above. Cronbach's Alphas for the five victimization scales were .87 for emotional mistreatment, .86 for controlling behavior, .83 for threats, .76 for physical violence, and .90 for sexual coercion. One or more incidents of physical dating violence victimization during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=1389 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=1216 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Experiencing Physical Dating Violence During Follow-up
|
427 participants
|
471 participants
|
SECONDARY outcome
Timeframe: One yearPopulation: Participants who were exposed to at least minimal risk for dating violence -- i.e., who had experienced or perpetrated emotional or physical dating violence in the year prior to the study, who were current daters at baseline, or who dated during the follow-up period.
See above.One or more incidents of emotional dating violence perpetration during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=1389 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=1216 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Perpetrating Emotional Dating Violence During Follow-up
|
617 participants
|
727 participants
|
SECONDARY outcome
Timeframe: One yearPopulation: Participants who were exposed to at least minimal risk for dating violence -- i.e., who had experienced or perpetrated emotional or physical dating violence in the year prior to the study, who were current daters at baseline, or who dated during the follow-up period.
See above.One or more incidents of emotional dating violence victimization during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=1389 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=1216 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Experiencing Emotional Dating Violence During Follow-up
|
824 participants
|
903 participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: One yearPopulation: Participants who were not exposed to at least minimal risk for dating violence (see definition of minimal risk above); among 725 participants not exposed to risk, 44 were inadvertently administered the wrong measures and thus were excluded from analyses, leaving N = 681.
Among participants not exposed to risk for dating violence, an 18-item measure assessed three types of peer violence perpetration and victimization (Levesque, 2007). Alphas for the three 3-item perpetrator scales are: .89 for emotional mistreatment, .89 for physical violence, and .94 for sexual coercion. At follow-up, in the spring and fall of 2010, the measure assessed peer violence experienced and perpetrated since January 1, 2010. Given the hierarchical structure of the perpetration measure, the physical violence and sexual coercion scales were combined to represent physical perpetration. One or more incidents of physical perpetration during the period in question were coded as "yes," and no incidents coded as "no".
Outcome measures
| Measure |
Intervention: Teen Choices
n=324 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=357 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Perpetrating Physical Peer Violence During Follow-up
|
60 participants
|
105 participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: One yearPopulation: Participants who were not exposed to at least minimal risk for dating violence (see definition of minimal risk above); among 725 participants not exposed to risk, 44 were inadvertently administered the wrong measures and thus were excluded from analyses, leaving N = 681.
See above. Cronbach's Alphas for the three victimization scales were .89 for emotional mistreatment, .89 for physical violence, and .93 for sexual coercion. One or more incidents of physical peer violence victimization during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=324 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=357 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Experiencing Physical Peer Violence During Follow-up
|
105 participants
|
169 participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: One yearPopulation: Participants who were not exposed to at least minimal risk for dating violence (see definition of minimal risk above); among 725 participants not exposed to risk, 44 were inadvertently administered the wrong measures and thus were excluded from analyses, leaving N = 681.
See above. One or more incidents of peer emotional mistreatment perpetrated during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=324 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=357 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Perpetrating Emotional Peer Violence During Follow-up
|
157 participants
|
226 participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: One yearPopulation: Participants who were not exposed to at least minimal risk for dating violence (see definition of minimal risk above); among 725 participants not exposed to risk, 44 were inadvertently administered the wrong measures and thus were excluded from analyses, leaving N = 681.
See above. One or more incidents of peer emotional mistreatment experienced during the period in question were coded as "yes," and no incidents coded as "no").
Outcome measures
| Measure |
Intervention: Teen Choices
n=324 Participants
A 3-session online, multimedia TTM-based intervention for teen dating violence prevention. For most students, the intervention seeks to reduce risk for dating violence by facilitating progress through the stages of change for using healthy relationship skills; daters are encouraged to use those skills in their dating relationships, and non-daters in their peer relationships, as relationships with peers serve as the foundation for experiences in romantic relationships. For victims of dating violence experiencing fear, the intervention does not focus on healthy relationship skills; instead, it seeks to facilitate progress through the stages of change for keeping oneself safe in relationships.
|
Comparison: Health in Motion
n=357 Participants
A 3-session online, multimedia, TTM-based intervention which targets physical activity, screen time, and healthy eating for obesity prevention. Health In Motion sessions were administered following the baseline, 6-month, and 12-month assessments to increase the benefits of study participation for Comparison schools and students.
|
|---|---|---|
|
Number of Participants Experiencing Emotional Peer Violence During Follow-up
|
198 participants
|
280 participants
|
Adverse Events
Intervention: Teen Choices
Comparison: Health In Motion
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Deborah Levesque, Ph.D.
Pro-Change Behavior Systems, Inc.
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place