Offord Centre for Child Studies, McMaster University, Hamilton, ON, Canada.
J Autism Dev Disord. 2013 Apr;43(4):860-8. doi: 10.1007/s10803-012-1627-4.
The purpose of this study was to examine the measurement properties of the Social Responsiveness Scale in an accelerated longitudinal sample of 4-year-old preschool children with the complementary approaches of categorical confirmatory factor analysis and Rasch analysis. Measurement models based on the literature and other hypothesized measurement models which were tested using categorical confirmatory factor analysis did not fit well and were not unidimensional. Rasch analyses showed that a 30-item subset met criteria of unidimensionality and invariance across item, person, and over time; and this subset exhibited convergent validity with other child outcomes. This subset was shown to have enhanced psychometric properties and could be used in measuring social responsiveness among preschool age children with Autism Spectrum Disorders.
本研究旨在通过类别验证性因素分析和 Rasch 分析这两种互补方法，在一个由 4 岁学龄前儿童组成的加速纵向样本中，检验社会反应性量表的测量特性。基于文献和其他假设的测量模型的测量模型不符合要求，且不具有单维性。Rasch 分析表明，一个 30 项的子集符合单维性和项目、个体和随时间的不变性标准；并且这个子集与其他儿童结果具有收敛效度。这个子集显示出增强的心理测量特性，可用于测量自闭症谱系障碍儿童的社会反应性。
