Development and validation of the Self-Determination Scale for College Students-Revised

The purpose of this study was to develop and validate a revised version of the Self-Determination Scale for College Students (SDSCS-R), a 40-item scale aimed at assessing the self-awareness, psychological empowerment, self-regulation, and autonomous functioning of students with disabilities attending universities in Taiwan. Participants were 265 students with disabilities recruited from 15 universities in northern Taiwan. Item analyses and factor analyses of data were conducted. Results show that the SDSCS-R had acceptable internal consistency, with Cronbach’s alpha values ranging from .86 to .90 and test–retest reliability coefficients ranging from .70 to .82. Results of exploratory factor analysis show that the four subscales proposed could be appropriately extracted, accounting for 47.90% of the total item variance. Confirmatory factor analysis results further confirm that the four-factor model had a good fit with the sample data. In sum, the SDSCS-R has good psychometric properties and can serve as an appropriate tool to measure the self-determination skills of college students with disabilities.