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Related Experiment Videos

The Peabody Developmental Fine Motor Scale: an interrater reliability study.

N A Stokes1, J L Deitz, T K Crowe

  • 1Department of Rehabilitation Medicine, University of Washington, Seattle.

The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association
|April 1, 1990
PubMed
Summary

This study found good interrater reliability for the Peabody Developmental Motor Scales Fine Motor scale, especially for children with developmental delays. The scale effectively minimizes score differences between raters.

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Area of Science:

  • Developmental Psychology
  • Motor Development Assessment
  • Pediatric Rehabilitation

Background:

  • The Peabody Developmental Motor Scales (PDMS) are widely used to assess motor skills in children.
  • Evaluating the interrater reliability of assessment tools is crucial for consistent and dependable clinical evaluations.
  • The Fine Motor scale of the PDMS requires examination for its reliability across different developmental groups.

Purpose of the Study:

  • To determine the interrater reliability of the Fine Motor scale of the Peabody Developmental Motor Scales.
  • To compare reliability between children with normal development and those with identified developmental delays.

Main Methods:

  • Two raters assessed the Fine Motor scale of the PDMS in 32 children aged 4-5 years.
  • The sample was divided equally into groups with normal development and developmental delays.

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  • Pearson product-moment and intraclass correlation coefficients were calculated to measure reliability.

    • Main Results:

    • High interrater reliability was observed for the delayed group (Pearson r = .97, Intraclass ICC = .97).
    • Reliability was lower but still acceptable for the normal development group (Pearson r = .77, Intraclass ICC = .76).
    • Percentage agreement was higher in the normal development group, potentially due to lower performance variance.

    Conclusions:

    • The Fine Motor scale of the PDMS demonstrates strong interrater reliability, particularly for children with developmental delays.
    • The scale contains sufficient items to minimize total score discrepancies between raters.
    • Specific test items with lower rater agreement were identified for potential refinement.