Longitudinal change in restricted and repetitive behaviors from 8-36 months.
Longitudinal change in restricted and repetitive behaviors from 8-36 months.
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DOI：
10.1186/s11689-020-09335-0
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发表时间：
2021-01-11
影响因子：
4.9
通讯作者：
Elison JT
中科院分区：
文献类型：
--
作者：
Sifre R;Berry D;Wolff JJ;Elison JT
限制和重复行为（RRB）是自闭症谱系障碍（ASD）的核心特征，也是ASD最早的行为体征之一。然而，RRB也存在于典型发育（TD）婴儿、幼儿和学龄前儿童中。过去的工作表明，随着时间的推移，检查这些行为的变化是必不可少的，以区分这些行为的规范表现和行为，表示神经发育障碍的风险。研究这些行为随时间变化的一个挑战是RRB的大多数度量尚未建立纵向度量不变性。本研究的目的是（1）建立测量不变性的幼儿重复行为量表（RBS-EC），RRBs的父母报告问卷，（2）模型的发展变化RRBs从8到36个月。我们收集了来自TD婴儿（n = 180）父母的RBS-EC反应，从8到36个月（n = 606个反应，参与者平均贡献了3个时间点）。我们利用一种新的测量不变性检验方法（Bauer，Psychological Models，22（3），507-526，2017），适度非线性因子分析（MNLFA），以确定RBS-EC是否在年龄和性别之间保持不变。然后，我们为RBS-EC的每个子量表（重复运动，自我导向和高阶行为）生成调整后的因子得分估计值，并使用线性混合效应模型来估计RBS-EC随时间的人与人之间的变化。RBS-EC表现出一定的非不变性作为年龄的函数。我们能够调整这种非不变性，以便更准确地模拟RBS-EC随时间的变化。重复运动和自我导向行为从8个月到36个月呈线性下降，而高阶行为则呈二次曲线，在18个月左右的发育后期开始下降。与未调整的原始平均得分相比，使用调整后的因子得分提供了许多好处，包括增加了人内变异性和精确度。RBS-EC的灵敏度足以测量TD样本中RRB的存在，以及它们随年龄的下降。使用每个分量表的因子得分估计值调整非不变性，使我们能够更准确地估计这些行为随时间的变化。在线版本包含补充材料，可通过10.1186/s11689-020-09335-0获得。
Restricted and repetitive behaviors (RRBs) are core features of autism spectrum disorder (ASD) and one of the earliest behavioral signs of ASD. However, RRBs are also present in typically developing (TD) infants, toddlers, and preschool-aged children. Past work suggests that examining change in these behaviors over time is essential to distinguish between normative manifestations of these behaviors and behaviors that denote risk for a neurodevelopmental disorder. One challenge in examining changes in these behaviors over time is that most measures of RRBs have not established longitudinal measurement invariance. The aims of this study were to (1) establish measurement invariance in the Repetitive Behavior Scales for Early Childhood (RBS-EC), a parent-report questionnaire of RRBs, and (2) model developmental change in RRBs from 8 to 36 months. We collected RBS-EC responses from parents of TD infants (n = 180) from 8 to 36 months (n = 606 responses, with participants contributing an average of 3-time points). We leverage a novel methodological approach to measurement invariance testing (Bauer, Psychological Models, 22(3), 507–526, 2017), moderated nonlinear factor analysis (MNLFA), to determine whether the RBS-EC was invariant across age and sex. We then generated adjusted factor score estimates for each subscale of the RBS-EC (repetitive motor, self-directed, and higher-order behaviors), and used linear mixed effects models to estimate between- and within-person changes in the RBS-EC over time. The RBS-EC showed some non-invariance as a function of age. We were able to adjust for this non-invariance in order to more accurately model changes in the RBS-EC over time. Repetitive motor and self-directed behaviors showed a linear decline from 8 to 36 months, while higher-order behaviors showed a quadratic trajectory such that they began to decline later in development at around 18 months. Using adjusted factor scores as opposed to unadjusted raw mean scores provided a number of benefits, including increased within-person variability and precision. The RBS-EC is sensitive enough to measure the presence of RRBs in a TD sample, as well as their decline with age. Using factor score estimates of each subscale adjusted for non-invariance allowed us to more precisely estimate change in these behaviors over time. The online version contains supplementary material available at 10.1186/s11689-020-09335-0.
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影响因子：
3.3
作者：
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通讯作者：
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通讯作者：
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