Department of Communication Disorders and Special Education, Old Dominion University, Norfolk, Virginia, USA.
Department of Educational and Developmental Science, University of South Carolina, Columbia, South Carolina, USA.
Autism Res. 2023 Nov;16(11):2172-2183. doi: 10.1002/aur.3016. Epub 2023 Aug 28.
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.
本研究旨在为自闭症谱系障碍儿童生活质量量表（QOLASD-C）提供更多心理计量学证据。我们采用 Rasch 模型，调查了 QOLASD-C 的功能、构成量表的项目特征，以及基于性别和种族/族裔的自闭症儿童亚组的项目功能。结果表明，QOLASD-C 是单维的，符合局部独立性假设，可测量生活质量（QOL）。项目与模型拟合良好，在低 QOL 和高 QOL 之间具有良好的区分能力。大多数项目具有中等难度水平。未观察到基于儿童性别和种族/族裔的项目功能差异。讨论了对研究和实践的影响。
