Abstract
Aim This study aimed to develop the Participation Questionnaire for Preschoolers (PQP) and validate its psychometric properties as a disability-specific tool designed to assess participation in preschool-aged children with autism spectrum disorder (ASD). Methods This cross-sectional study recruited caregivers of 412 children, including those diagnosed with ASD and those at risk for neurodevelopmental disorders. Participants were recruited from child development facilities, medical institutions, and developmental support websites across Japan. Data from 287 children diagnosed with ASD were analyzed for item reduction, followed by exploratory factor analysis and the calculation of Cronbach’s alpha to evaluate internal consistency. Five hypotheses were tested to assess construct validity. Results Item reduction resulted in the removal of seven items and the identification of four factors: Friendship and Education, Family Satisfaction, Daily Living and Independence, and Leisure and Community Life. Cronbach’s alpha values for these factors ranged from 0.74 to 0.88, indicating acceptable internal consistency. Three of the five hypotheses related to construct validity were supported, aligning with expectations. Conclusion The PQP exhibited structural validity, internal consistency, and construct validity. However, further longitudinal studies are needed to validate its measurement properties over time.
Published Version
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