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Validation of the Arabic version of the Self-Determination Screening Scale: A Multitrait-Multimethod analysis
G H Alnahdi1, A Alwadei2, S Schwab3
1Department of Special Education, College of Education, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia.
Research in Developmental Disabilities
|January 27, 2026
Summary
This study validates the Self-Determination Screening Scale for Adolescents with Disabilities (SDSS-AR) for Arab students. The scale reliably measures self-determination across student, family, and teacher perspectives, aiding societal integration.
Area of Science:
- Special Education
- Psychometrics
- Cross-Cultural Psychology
Background:
- Lack of validated self-determination assessment tools for students with disabilities.
- Need for culturally relevant measures in diverse educational contexts.
- Importance of self-determination for societal integration of individuals with disabilities.
Purpose of the Study:
- To evaluate the psychometric properties of the Self-Determination Screening Scale for Adolescents with Disabilities (SDSS-AR) in the Arab context.
- To assess the convergent and discriminant validity of the SDSS-AR using Multitrait-Multimethod analysis.
- To establish the reliability and validity of the SDSS-AR for student, family, and teacher informants.
Main Methods:
- Multitrait-Multimethod (MTMM) analysis was applied to assess validity.
- The study involved a total sample size of 508 participants (students, families, teachers).
- Convergent and discriminant validity were examined across different informant versions.
Main Results:
- The results provide strong support for the convergent and discriminant validity of the SDSS-AR.
- The Self-Determination Screening Scale for Adolescents with Disabilities (SDSS-AR) was established as a reliable measure.
- The scale demonstrated validity across student, family, and teacher perspectives.
Conclusions:
- The culturally adapted SDSS-AR is a valid and reliable tool for assessing self-determination in Arab students with disabilities.
- The findings contribute to enhancing educational and psychological practices through culturally relevant assessment.
- Validated tools like the SDSS-AR empower students with disabilities towards successful societal integration.
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