Journal of Behavioral Medicine

, Volume 27, Issue 2, pp 167–183

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

Authors

    • Department of Medical, Clinical and Experimental PsychologyMaastricht University
  • Lance McCracken
    • Pain Management Unit, Royal National Hospital for Rheumatic Disease andUniversity of Bath
  • Madelon L. Peters
    • Department of Medical, Clinical and Experimental PsychologyMaastricht University
  • Geert Crombez
    • Faculty of Psychology and Educational SciencesGhent University
  • Gerard van Breukelen
    • Department of Methodology and StatisticsMaastricht University
  • Johan W. S. Vlaeyen
    • Department of Medical, Clinical and Experimental PsychologyMaastricht University
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