Researchers seeking to make valid conclusions about engagement for young children with autism spectrum disorder (ASD) must first determine the reliability of estimates obtained across the conditions sampled. Working from that premise, we conducted a secondary data analysis of shared book readings between caregivers and their children with ASD, examining the contribution of measurement error on estimates of four states of child engagement. Caregivers read two different book types, each three times, with their children. With book type and occasion as measurement facets, we conducted a generalizability study and a series of decision studies. With the interaction of Persons × Book Type × Occasion contributing most measurement error for four engagement variables, we only found stable estimates for unengaged behaviors. For the variables of active engagement, visual engagement, and disruptive, four, five, and more than 10 book types, respectively, were necessary to obtain stable estimates across two occasions.

寻求对自闭症谱系障碍 (ASD) 幼儿的参与做出有效结论的研究人员必须首先确定在抽样条件下获得的估计值的可靠性。在此前提下，我们对照料者及其患有 ASD 的孩子之间共享的书籍阅读进行了二级数据分析，检查了测量误差对四种儿童参与状态估计值的影响。看护人与孩子一起阅读两种不同类型的书籍，每本书三遍。以书籍类型和场合作为测量方面，我们进行了泛化性研究和一系列决策研究。与人的互动× 书型 × 场合对四个参与变量的测量误差最大，我们只找到了未参与行为的稳定估计。对于主动参与、视觉参与和破坏性变量，分别需要 4 种、5 种和 10 多种书籍类型才能在两种情况下获得稳定的估计。