Abstract

This study examined the accuracy of the Behavior Assessment System for Children-3 for Autism Spectrum Disorder (ASD) diagnosis using parent (PRS) and teaching rating (TRS) scales. The accuracy of three PRS and TRS derived scores with strong theoretical relationships to ASD (Developmental Social Disorders [DSD], Atypicality [ATP], and Withdrawal [WIT]) and the Autism Probability Index (AUI) was examined. The T scores of 149 children with ASD were compared with typically developing children within similar demographics to assess diagnostic accuracy (i.e., differential validity). The results revealed statistically significant differences for all scales between the group with ASD and the matched group of typically developing children. Sensitivity and specificity were maximized for both the PRS and TRS when DSD, ATP, and WIT scales were greater than 60 and a cut score of on the AUI was set at 55. Overall, sensitivity and specificity indexes associated with these cut scores demonstrated strong diagnostic utility for differentiating the two groups.

摘要

本研究使用父母 (PRS) 和教学评分 (TRS) 量表检查了 3 岁儿童行为评估系统对自闭症谱系障碍 (ASD) 诊断的准确性。三个 PRS 和 TRS 派生分数的准确性与 ASD（发育性社会障碍 [DSD]、非典型性 [ATP] 和戒断 [WIT]）和自闭症概率指数 (AUI) 具有很强的理论关系。将 149 名 ASD 儿童的 T 分数与相似人口统计的典型发育儿童进行比较，以评估诊断准确性（即差异有效性）。结果显示，ASD 组与正常发育儿童的匹配组之间的所有量表都有统计学上的显着差异。当 DSD、ATP、