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Related Experiment Video

Updated: Feb 19, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram
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Pain disability index: construct and discriminant validity.

A Jerome1, R T Gross

  • 1Department of Behavioral Medicine and Psychiatry, West Virginia University Health Sciences Center, Morgantown 26506.

Archives of Physical Medicine and Rehabilitation
|October 1, 1991
PubMed
Summary
This summary is machine-generated.

The Pain Disability Index (PDI) effectively measures pain-related functional limitations. It provides insights into disability beyond just pain intensity, correlating with psychological distress and behavioral factors.

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Area of Science:

  • Psychology
  • Rehabilitation Medicine
  • Pain Management

Background:

  • The Pain Disability Index (PDI) is a self-report tool assessing pain-related functional limitations.
  • Existing measures may not fully capture the multifaceted nature of pain disability.

Purpose of the Study:

  • To evaluate the construct validity of the PDI against other disability and distress measures.
  • To determine the PDI's ability to explain disability aspects independently of pain intensity.

Main Methods:

  • Assessed PDI construct validity using correlational analyses.
  • Employed partial correlations to control for pain intensity when examining PDI's relationship with behavioral and psychological factors.

Main Results:

  • PDI factor 1 (discretionary activities) showed stronger correlations than factor 2 (obligatory activities).
  • Both PDI factors correlated significantly with psychological distress and behavioral disability measures.
  • Controlling for pain intensity, PDI factor 1 remained significantly associated with depression, employment, and medication use.

Conclusions:

  • The PDI is a valuable tool for assessing functional disability in individuals experiencing pain.
  • PDI provides crucial information on disability that complements pain intensity measures.