Cross-cultural adaptation, validity, and reliability of the Turkish version of Assistance to Participate Scale

The Assistance to Participate Scale is a questionnaire to evaluate activity participation of children with developmental disabilities. The purpose of this study was to determine the validity and reliability of the Turkish version of the Assistance to Participate Scale.

Ninety-eight mothers' children with developmental disabilities were included in this study. The Assistance to Participate Scale, Pediatric Quality of Life Inventory, and Pediatric Evaluation of Disability Inventory were applied to all subjects. To evaluate reliability, Cronbach's alpha coefficient, minimal detectable change (MDC) with standard error of measurement (SEM), and intraclass correlation coefficient (ICC) for test-retest were used. The relationship between Assistance to Participate Scale, Pediatric Quality of Life Inventory, and Pediatric Evaluation of Disability Inventory was investigated, and exploratory and confirmatory factor analysis were used for construct validity.

Cronbach's alpha value of the scale was found.93, demonstrating that this value has excellent internal consistency. Test-retest reliability was found 0.99 (ICC 95% CI [0.995, 0.998]; SEM:0.57, MDC:1.58). For construct validity, the correlations between Assistance to Participate Scale, Pediatric Quality of Life Inventory, and Pediatric Evaluation of Disability Inventory total scores and items were significant (p < .001). Factor analysis showed that the questionnaire had unidimensional and the explained variance was 0.84%.

The Turkish version of the Assistance to Participate Scale is valid and reliable scale for children with developmental disabilities.