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Related Experiment Videos

Pervasive developmental disorders rating scale: development and construct validity.

Thomas O Williams1, Ronald C Eaves

  • 1Department of Teaching and Learning, Virginia Polytechnic Institute and State University, Blackburg, VA 24061, USA. thwilli1@vt.edu

Psychological Reports
|November 11, 2005
PubMed
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The Pervasive Developmental Disorders Rating Scale effectively screens for autism spectrum disorder in children aged 1-12. Confirmatory factor analysis confirmed the scale's hypothesized factor structure in children with autistic disorder.

Area of Science:

  • Child psychology
  • Developmental disorders assessment
  • Autism spectrum disorder diagnostics

Background:

  • Pervasive Developmental Disorders Rating Scale (PDDRS) developed for screening developmental disorders.
  • Autism spectrum disorder (ASD) diagnosis requires reliable screening tools.
  • Understanding the construct validity of PDDRS is crucial for its clinical application.

Purpose of the Study:

  • To describe the rationale and development of the PDDRS.
  • To assess the construct validity of the PDDRS in children diagnosed with autistic disorder.
  • To examine the factor structure of the PDDRS using confirmatory factor analysis.

Main Methods:

  • Scale development and rationale description.
  • Construct validity assessment using ratings from 362 children (aged 1-12) with autistic disorder.

Related Experiment Videos

  • Confirmatory factor analysis to evaluate hypothesized hierarchical factor model against competing models.

    • Main Results:

    • The factor structure of the hypothesized hierarchical model was supported in the sample of children with autistic disorder.
    • Confirmatory factor analysis provided evidence for the construct validity of the PDDRS in this population.
    • The scale demonstrated a robust factor structure for screening autistic disorder.

    Conclusions:

    • The PDDRS exhibits appropriate construct validity for screening autistic disorder in children aged 1-12.
    • The scale's hypothesized factor structure is supported in children diagnosed with autistic disorder.
    • Further research is recommended to address limitations and explore additional applications of the PDDRS.