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09-04-2017 | S.I. : Anxiety in Autism Spectrum Disorders | Uitgave 12/2017 Open Access

Journal of Autism and Developmental Disorders 12/2017

Comparisons of the Factor Structure and Measurement Invariance of the Spence Children’s Anxiety Scale—Parent Version in Children with Autism Spectrum Disorder and Typically Developing Anxious Children

Journal of Autism and Developmental Disorders > Uitgave 12/2017
Magdalena Glod, Cathy Creswell, Polly Waite, Ruth Jamieson, Helen McConachie, Mikle Don South, Jacqui Rodgers


The Spence Children’s Anxiety Scale—Parent version (SCAS-P) is often used to assess anxiety in children with autism spectrum disorder (ASD), however, little is known about the validity of the tool in this population. The aim of this study was to determine whether the SCAS-P has the same factorial validity in a sample of young people with ASD (n = 285), compared to a sample of typically developing young people with anxiety disorders (n = 224). Poor model fit with all of the six hypothesised models precluded invariance testing. Exploratory factor analysis indicated that different anxiety phenomenology characterises the two samples. The findings suggest that cross-group comparisons between ASD and anxious samples based on the SCAS-P scores may not always be appropriate.

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