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Related Experiment Videos

The Pain Distress Inventory: development and initial psychometric properties.

Augustine Osman1, Francisco X Barrios, Peter M Gutierrez

  • 1University of Northern Iowa, Cedar Falls 50614-0505, USA. augustine.osman@uni.edu

Journal of Clinical Psychology
|June 17, 2003
PubMed
Summary

A new tool, the Pain Distress Inventory (PDI), effectively measures affective distress in patients with physical pain. This reliable and valid measure aids in understanding pain

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Area of Science:

  • Psychometrics
  • Pain Psychology
  • Clinical Assessment

Background:

  • Affective distress is a significant component of the physical pain experience.
  • Existing measures may not fully capture the multifaceted nature of pain-related distress.
  • A need exists for a psychometrically sound instrument to assess pain-related affective symptoms.

Purpose of the Study:

  • To develop and validate the Pain Distress Inventory (PDI), a 26-item self-report measure.
  • To assess affective distress symptoms associated with physical pain.
  • To establish the psychometric properties, including reliability and validity, of the PDI.

Main Methods:

  • Contemporary test development strategies were employed across Phases 1 to 3.
  • Studies 1 and 2 established a four-factor oblique structure: PDI-Depression, PDI-Anger, PDI-Pain Sensitivity, and PDI-Somatic Anxiety.

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  • Studies 3 and 4 examined reliability, validity, and the PDI's ability to differentiate between clinical and non-clinical groups.

    • Main Results:

    • The PDI demonstrated high internal consistency reliability for total and scale scores.
    • PDI scores effectively predicted pain-interference and pain-symptom index scores.
    • The PDI successfully differentiated between clinic-based and non-clinic-based study participants.

    Conclusions:

    • The Pain Distress Inventory (PDI) is a reliable and valid measure for assessing affective distress in individuals experiencing physical pain.
    • The PDI's four-factor structure provides a nuanced understanding of pain-related emotional and somatic symptoms.
    • The PDI has potential utility in clinical settings for evaluating and managing pain-related psychological distress.