Cross-cultural adaptation, reliability, and validity of the Turkish Adult Sensory Processing Scale

Introduction Sensory processing is crucial to adaptive behavioural responses in occupational therapy. Nevertheless, information on sensory processing in adults is limited. The Adult Sensory Processing Scale (ASPS) measures behavioural responses indicative of sensory processing in different sensory systems. The study aimed to examine the cultural adaptation, reliability and validity of the ASPS-Turkish (ASPS-T). Methods The ASPS-T was administered to 405 individuals, who were aged 18 to 64 (38.5 +/- 11.4) years. The cross-cultural adaptation and translation procedures were conducted following Beaton's guidelines. Internal consistency was examined by Cronbach's alpha. Criterion-related validity of the ASPS was determined by the Adolescent/Adult Sensory Profile using Construct validity and was examined by confirmatory factor analysis using AMOS. Results The study included 405 participants (271 female and 134 male). Exploratory factor analysis with varimax rotation determined 11 factors with 55.15% total variance. In confirmatory factor analysis (CFA), model fit indices showed an acceptable fit. The reliability of the scale was 0.834, and test-retest reliability changed from 0.94 to 0.99, illustrating high internal consistency and excellent reliability of the scale. Conclusions The ASPS-T is reliable and valid for analysing sensory processing patterns of adults in the Turkish population.