Behavior inflexibility (BI) refers to rigid patterns of behavior that contrast with the need to be adaptable to changing environmental demands. We developed a parent‐reported outcome measure of BI for children with autism spectrum disorder (ASD) and other developmental disabilities with a multi‐step iterative process. A pool of 62 candidate items was generated through expert panel feedback, review of existing scales and focus groups. A consensus process was used to generate the final 38 items. Parents of 943 children (age range, 3–18 years; average, 11.4 years; 79% boys) with ASD completed an online survey. One hundred thirty‐three parents rated their child twice within 3 weeks (average = 16.5 days). A series of factor analyses suggested that the 38 items measured a single construct. Scores had a weak correlation with level of functioning (−0.12) and did not differ based on sex. Scores had a negligible correlation with age (−0.07), although measurement invariance was not supported. The mean total score for the Behavioral Inflexibility Scale (BIS) was normally distributed. Internal consistency was α = 0.97 and temporal stability was r = 0.92. Correlations with parent ratings on the subscales of the Repetitive Behavior Scale—Revised varied from 0.48 to 0.89. The correlation with parent ratings on the Social Communication Questionnaire total score was 0.52. Our data show that BI in children with ASD ranges significantly from mild to severe and that the 38‐item BIS is valid and reliable. Autism Res 2020, 13: 489–499. © 2020 The Authors. Autism Research published by International Society for Autism Research published by Wiley Periodicals, Inc.

中文翻译：

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为自闭症谱系障碍和其他发育障碍儿童制定行为不灵活量表。

行为不灵活性 (BI) 是指与适应不断变化的环境需求的需要形成鲜明对比的僵化行为模式。我们通过多步骤迭代过程为患有自闭症谱系障碍 (ASD) 和其他发育障碍的儿童开发了一种家长报告的 BI 结果测量方法。通过专家小组的反馈、对现有量表和焦点小组的审查，产生了 62 个候选项目。共识过程用于生成最后的 38 个项目。943 名患有 ASD 的儿童（年龄范围为 3-18 岁；平均为 11.4 岁；79% 为男孩）的父母完成了一项在线调查。133 位家长在 3 周内对他们的孩子进行了两次评分（平均 = 16.5 天）。一系列因素分析表明，这 38 个项目测量了一个单一的结构。分数与功能水平的相关性较弱（-0。12）并且没有因性别而异。尽管不支持测量不变性，但分数与年龄的相关性可以忽略不计（-0.07）。行为不灵活量表（BIS）的平均总分呈正态分布。内部一致性是α = 0.97，时间稳定性为r = 0.92。重复行为量表子量表上与父母评级的相关性 - 修订版从 0.48 到 0.89 不等。社交沟通问卷总分与父母评分的相关性为 0.52。我们的数据显示，自闭症儿童的 BI 范围从轻度到重度不等，并且 38 项 BIS 是有效且可靠的。自闭症研究2020，13：489–499。© 2020 作者。Wiley Periodicals, Inc.出版的国际自闭症研究学会出版的自闭症研究