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Title: Psychometric evaluation of the pain anxiety symptoms scale (PASS) in chronic pain patients
Authors: Roelofs, Jeffrey
McCracken, Lance
Peters, Madelon L.
Crombez, Geert
van Breukelen, Gerard
Vlaeyen, Johannes # ×
Issue Date: Apr-2004
Series Title: Journal of Behavioral Medicine vol:27 issue:2 pages:167-183
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.
URI: 
ISSN: 0160-7715
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Health Psychology
× corresponding author
# (joint) last author

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