Psychometric properties of the Iranian version of the Stanford Social Dimensions Scale (SSDS) in different age groups with autism spectrum disorder
Poster Presentation
Paper ID : 1275-SSRC
Authors
1دانشجوی دکتری رفتارحرکتی، دانشکده علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران
2استاد تمام گروه رفتار حرکتی ، دانشکده علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران
3دانشیار گروه رفتار حرکتی، دانشکده علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران
Abstract
Background: Among the various theories explaining the pervasive social impairments in Autism Spectrum Disorders (ASD), the concepts of a core deficit in social cognition (Theory of Mind) and motivational factors (the social motivation theory) have emerged as the most prominent accounts of ASD.The Stanford Social Dimensions Scale (SSDS) is a questionnaire designed to capture individual differences in social motivation, affiliation, social communication, recognition, and unusual approach in both normative and clinical populations. The purpose of this study was to assess the psychometric properties of the Iranian version of the Stanford Social Dimensions Scale (SSDS) across various age groups with autism spectrum disorder.
Methods: The content validity of the Iranian version of SSDS was determined and modified through input from 9 specialists in the field of sport psychology. Subsequently, parents of individuals with autism in various age groups (children: 6-12 years, teenagers: 13-18 years, young adults: 19-29 years) completed the scale. Construct validity was assessed via confirmatory factor analysis (CFA). The reliability of the SSDS was assessed, using a 2-week test-retest to establish its stability and Cronbach’s Alpha to estimate its internal consistency.
Results: The results showed that all five factors of the Scale have a high correlation with the entire scale (P<0.0005) and the fit indices indicated that the 5-factor correlated model was the best fit (CFI = 0.914, TLI = 0.921, RMSEA = 0.051, IFI = 0.913) in the total group (6-29 years). The scale was found to have acceptable internal consistency (α > 0.7) and test-retest reliability (intra-class correlation coefficient [ICC] > 0.80) across different age groups with ASD. There were significant differences between groups in all dimensions (social motivation: F = 118.54, p <0.0005, ƞ2 = 0.32; social affiliation: F = 54.68, p < 0.0005, ƞ2 = 0.12; social communication: F = 68.29, p <0 .005, ƞ2 = 0.09; social recognition: F = 62.19, p <0.005, ƞ2 = 0.24; unusual approach: F = 83.52, p < 0.005, ƞ2 =0 .19).
Conclusion: Our findings provide initial validation of a new scale designed to comprehensively capture individual differences in social motivation and other key social dimensions in ASD.
Methods: The content validity of the Iranian version of SSDS was determined and modified through input from 9 specialists in the field of sport psychology. Subsequently, parents of individuals with autism in various age groups (children: 6-12 years, teenagers: 13-18 years, young adults: 19-29 years) completed the scale. Construct validity was assessed via confirmatory factor analysis (CFA). The reliability of the SSDS was assessed, using a 2-week test-retest to establish its stability and Cronbach’s Alpha to estimate its internal consistency.
Results: The results showed that all five factors of the Scale have a high correlation with the entire scale (P<0.0005) and the fit indices indicated that the 5-factor correlated model was the best fit (CFI = 0.914, TLI = 0.921, RMSEA = 0.051, IFI = 0.913) in the total group (6-29 years). The scale was found to have acceptable internal consistency (α > 0.7) and test-retest reliability (intra-class correlation coefficient [ICC] > 0.80) across different age groups with ASD. There were significant differences between groups in all dimensions (social motivation: F = 118.54, p <0.0005, ƞ2 = 0.32; social affiliation: F = 54.68, p < 0.0005, ƞ2 = 0.12; social communication: F = 68.29, p <0 .005, ƞ2 = 0.09; social recognition: F = 62.19, p <0.005, ƞ2 = 0.24; unusual approach: F = 83.52, p < 0.005, ƞ2 =0 .19).
Conclusion: Our findings provide initial validation of a new scale designed to comprehensively capture individual differences in social motivation and other key social dimensions in ASD.
Keywords