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Validating the Revised Illness Perception Questionnaire as a Measure of Parent Perceptions of Autism Spectrum
Sarah S Mire1, Tammy D Tolar2, Christie M Brewton3
1Department of Psychological, Health, and Learning Sciences, University of Houston, 3657 Cullen Blvd., Room 491, Houston, TX, 77204-5029, USA. ssmire@uh.edu.
Abstract:
The illness perception questionnaire (IPQ) and its revision (IPQ-R) measure perceptions about health-related diagnoses and the influence of cognitions on coping. In this study, the factor structure of a version revised for use with autism spectrum disorder (ASD) was investigated with a sample of parents (n = 361) whose children have ASD. Subsequently, multidimensional item response theory was used to evaluate item and subscale properties. Results indicated items from five of the seven IPQ-R-ASD scales loaded as expected, though subscales related to control were not distinct. Additionally, parents' response patterns were evaluated and discussed. Use of this measure in ASD-focused research may enhance understanding of how parents' cognitions of their child's ASD impacts treatment selection, treatment implementation, and overall family well-being.
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