Trial Outcomes & Findings for Single Case Research Design: Teacher Outcomes (NCT NCT06729177)
NCT ID: NCT06729177
Last Updated: 2025-12-19
Results Overview
The Strategic and Interactive Signing Instruction (SISI) Fidelity Tool is a 45-item observational checklist assessing adherence to the model-guided-independent cycle, scaffolding quality, and use of targeted ASL skills. Each item is rated from 0 to 1 (0 = not implemented, 0.5 = partially implemented, 1 = fully implemented). Scores are summed and converted to a percentage (0-100%). Higher scores indicate stronger fidelity of implementation.
COMPLETED
NA
4 participants
Baseline began at the start of the school year for all participants. Because intervention start times were staggered in the multiple-baseline design, intervention duration ranged from approximately 12 to 40 weeks across participants.
2025-12-19
Participant Flow
Four teachers from a school for the deaf were recruited.
All four teachers provided business-as-usual language instruction to generate baseline data before receiving training in Strategic and Interactive Signing Instruction (SISI) to implement during the intervention phase.
Participant milestones
| Measure |
Single Case Research Design
A noncurrent multiple-baseline design across teachers was used to assess the support required for teachers to achieve proficiency in SISI implementation. The independent variable was SISI training, and the dependent variable was teacher fidelity to SISI as measured by the SISI Fidelity Tool.
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|---|---|
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Overall Study
STARTED
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4
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Overall Study
COMPLETED
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4
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Overall Study
NOT COMPLETED
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0
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Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
All participants reported deaf.
Baseline characteristics by cohort
| Measure |
Single Case Research Design
n=4 Participants
A noncurrent multiple baseline design across teacher participants will be utilized to assess the extent of support required by teachers to become proficient in SISI implementation. In this study, the independent variable is the SISI training, and the dependent variable is teacher fidelity to the SISI program as measured by the SISI fidelity checklist.
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|---|---|
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Region of Enrollment
United States
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4 Participants
n=8 Participants
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Deaf Status
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4 Participants
n=8 Participants • All participants reported deaf.
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Age, Continuous
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38 Years
STANDARD_DEVIATION 7.4 • n=8 Participants
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Sex: Female, Male
Female
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3 Participants
n=8 Participants
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Sex: Female, Male
Male
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1 Participants
n=8 Participants
|
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Race (NIH/OMB)
American Indian or Alaska Native
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0 Participants
n=8 Participants
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Race (NIH/OMB)
Asian
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0 Participants
n=8 Participants
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Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
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0 Participants
n=8 Participants
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Race (NIH/OMB)
Black or African American
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1 Participants
n=8 Participants
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Race (NIH/OMB)
White
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3 Participants
n=8 Participants
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Race (NIH/OMB)
More than one race
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0 Participants
n=8 Participants
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Race (NIH/OMB)
Unknown or Not Reported
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0 Participants
n=8 Participants
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PRIMARY outcome
Timeframe: Baseline began at the start of the school year for all participants. Because intervention start times were staggered in the multiple-baseline design, intervention duration ranged from approximately 12 to 40 weeks across participants.The Strategic and Interactive Signing Instruction (SISI) Fidelity Tool is a 45-item observational checklist assessing adherence to the model-guided-independent cycle, scaffolding quality, and use of targeted ASL skills. Each item is rated from 0 to 1 (0 = not implemented, 0.5 = partially implemented, 1 = fully implemented). Scores are summed and converted to a percentage (0-100%). Higher scores indicate stronger fidelity of implementation.
Outcome measures
| Measure |
Single Case Research Design
n=4 Participants
A noncurrent multiple baseline design across teacher participants will be utilized to assess the extent of support required by teachers to become proficient in SISI implementation. In this study, the independent variable is the SISI training, and the dependent variable is teacher fidelity to the SISI program as measured by the SISI fidelity checklist.
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|---|---|
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SISI Fidelity
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80 Percentage of SISI practices implemented
Interval 55.0 to 94.0
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Adverse Events
Single Case Research Design
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place