Journal
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume 48, Issue 12, Pages 4231-4249Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-018-3678-7
Keywords
Autism spectrum disorder; Sensory; Short Sensory Profile; Factor analysis; Psychometric; Validity
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Funding
- National Institutes of Health from NCATS/NIH [T32 GM007347, R01 MH102272, K01 MH 90232, R21 MH 109225, R21 MH10132, UL1 TR000445]
- National Institutes of Health [U54 HD083211]
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The Short Sensory Profile (SSP) is one of the most commonly used measures of sensory features in children with autism spectrum disorder (ASD), but psychometric studies in this population are limited. Using confirmatory factor analysis, we evaluated the structural validity of the SSP subscales in ASD children. Confirmatory factor models exhibited poor fit, and a follow-up exploratory factor analysis suggested a 9-factor structure that only replicated three of the seven original subscales. Secondary analyses suggest that while reliable, the SSP total score is substantially biased by individual differences on dimensions other than the general factor. Overall, our findings discourage the use of the SSP total score and most subscale scores in children with ASD. Implications for future research are discussed.
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