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Related Experiment Videos

The neck pain and disability scale: test-retest reliability and construct validity.

Paula Goolkasian1, Anthony H Wheeler, Stephanie S Gretz

  • 1University of North Carolina, Charlotte 28223, USA. pagoolka@email.uncc.edu

The Clinical Journal of Pain
|July 20, 2002
PubMed
Summary

The Neck Pain and Disability Scale (NPAD) is a reliable and valid tool for assessing neck pain. It accurately measures treatment effects on different aspects of the pain experience.

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Area of Science:

  • Rehabilitation Medicine
  • Orthopedics
  • Pain Management

Background:

  • Neck pain is a prevalent condition impacting quality of life.
  • Accurate and reliable measurement tools are essential for evaluating treatment efficacy.

Purpose of the Study:

  • To establish the test-retest reliability of the Neck Pain and Disability Scale (NPAD).
  • To determine the construct validity of the NPAD.
  • To assess the responsiveness of the NPAD to treatment interventions.

Main Methods:

  • Two groups of patients with neck pain were recruited.
  • Group 1 completed the NPAD twice to assess test-retest reliability.
  • Group 2 completed the NPAD and other outcome measures over 4 months to evaluate treatment effects.

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Main Results:

  • High test-retest reliability was demonstrated with a reliability coefficient of r² = 0.93.
  • The NPAD showed construct validity by comparing favorably with other pain measures and exhibiting a larger treatment effect.
  • Factor scores of the NPAD indicated varied treatment effects across different dimensions of the neck pain experience.

Conclusions:

  • The NPAD is a stable and responsive outcome measure for patients experiencing neck pain.
  • NPAD factor scores provide valuable insights into treatment effects on specific pain dimensions.