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Our purpose in this study was to provide additional psychometric evidence of the Quality of Life for Children with Autism Spectrum Disorder (QOLASD-C) scale. We used Rasch modeling to investigate the QOLASD-C functioning, the characteristics of the items comprising the scale, and the item functioning across subgroups of children with ASD based on gender and race/ethnicity. Results showed that QOLASD-C was unidimensional, met the local independence assumption, and measured quality of life (QOL). The items showed excellent fit to the model and good discriminating ability between low and high QOL. Most items showed a moderate difficulty level. No differential item functioning was observed based on children's gender and race/ethnicity. Implications for research and practice are discussed.
© 2023 The Authors
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Article states: Data are available upon request. No new data are generated.
Original Publication Citation
Chezan, L. C., Liu, J., Gao, R., & Drasgow, E. (2023). Investigating the quality of life for children with autism spectrum disorder scale using Rasch methodology. Autism Research. Advance online publication. https://doi.org/10.1002/aur.3016
Chezan, Laura C.; Liu, Jin; Gao, Ruiqin; and Drasgow, Erik, "Investigating the Quality of Life for Children with Autism Spectrum Disorder Scale Using Rasch Methodology" (2023). Communication Disorders & Special Education Faculty Publications. 86.