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A quantitative measure of restricted and repetitive behaviors for early childhood

Jason J Wolff1, Brian A Boyd2, Jed T Elison3

  • 1Department of Educational Psychology, University of Minnesota, Minneapolis, MN USA.

Journal of Neurodevelopmental Disorders
|August 4, 2016
PubMed

Insights

A new scale, the Repetitive Behavior Scale for Early Childhood (RBS-EC), reliably measures restricted and repetitive behaviors in toddlers. This tool aids in understanding developmental differences in young children.

Area of Science:

  • Child Psychology
  • Neurodevelopmental Disorders
  • Behavioral Science

Background:

  • Restricted and repetitive behaviors (RRBs) are key features in neurodevelopmental, psychiatric, and neurological conditions.
  • While normative in early childhood, RRBs require further research across typical and atypical development.
  • Understanding the dimensions of RRBs in early childhood is crucial for early identification and intervention.

Purpose of the Study:

  • To develop and validate the Repetitive Behavior Scale for Early Childhood (RBS-EC).
  • To quantitatively assess dimensional features of RRBs in a community sample of toddlers.
  • To establish the psychometric properties and factor structure of the RBS-EC.

Main Methods:

  • Development of the 34-item parent-rated Repetitive Behavior Scale for Early Childhood (RBS-EC).
  • Evaluation of psychometric properties, including internal consistency and test-retest reliability.
  • Factor analysis (split-half and confirmatory) to determine the scale's structure in 914 toddlers.

Main Results:

  • The RBS-EC demonstrated excellent internal consistency (α=0.90) and strong reliability (ICC=0.87-0.90).
  • Evidence of convergent and discriminative validity was established.
  • A four-factor structure (repetitive motor, restricted interests/behavior, ritual/routine, self-directed behavior) best fit the data, aligning with the conceptual model.

Conclusions:

  • The Repetitive Behavior Scale for Early Childhood (RBS-EC) is a reliable and valid measure.
  • The scale effectively characterizes quantitative, dimensional aspects of RRBs in young children.
  • RBS-EC provides a valuable tool for research and clinical assessment of early childhood behaviors.
Abstract

Keywords:
Circumscribed interestsMeasurementMotor stereotypyRepetitive behaviorRitualistic behaviorSelf-injurious behaviorToddlers

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