Journal of Behavioral Medicine

, Volume 27, Issue 2, pp 167–183

Psychometric Evaluation of the Pain Anxiety Symptoms Scale (PASS) in Chronic Pain Patients

  • Jeffrey Roelofs
  • Lance McCracken
  • Madelon L. Peters
  • Geert Crombez
  • Gerard van Breukelen
  • Johan W. S. Vlaeyen
Article

DOI: 10.1023/B:JOBM.0000019850.51400.a6

Cite this article as:
Roelofs, J., McCracken, L., Peters, M.L. et al. J Behav Med (2004) 27: 167. doi:10.1023/B:JOBM.0000019850.51400.a6

Abstract

This study examined psychometric properties of the Pain Anxiety Symptoms Scale (PASS), a measure of pain-related fear. A recently developed shortened version of the PASS, the PASS-20, was also investigated. Previously reported factor structures of the PASS were tested by means of confirmatory factor analysis. Results indicated that all models fitted adequately but that a five-factor solution fitted slightly better compared to the other models tested. The four-factor solution of the PASS-20 was tested by means of confirmatory factor analysis and results indicated adequate fit. Moreover, the four-factor solution of the PASS-20 was invariant among fibromyalgia and low-back pain patients. Convergent validity of the original PASS and the PASS-20 was good and internal consistency reliability adequate to excellent. The suitability of the original PASS and the PASS-20 are discussed and directions for future research are provided.

Pain Anxiety Symptoms Scale (PASS)PASS-20reliabilityvalidity

Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • Jeffrey Roelofs
    • 1
  • Lance McCracken
    • 2
  • Madelon L. Peters
    • 1
  • Geert Crombez
    • 3
  • Gerard van Breukelen
    • 4
  • Johan W. S. Vlaeyen
    • 1
  1. 1.Department of Medical, Clinical and Experimental PsychologyMaastricht UniversityMaastrichtThe Netherlands
  2. 2.Pain Management Unit, Royal National Hospital for Rheumatic Disease andUniversity of BathBathUnited Kingdom
  3. 3.Faculty of Psychology and Educational SciencesGhent UniversityGhentBelgium
  4. 4.Department of Methodology and StatisticsMaastricht UniversityMaastrichtThe Netherlands