The factor structure and subscale properties of the pain catastrophizing scale: are there differences in the distinctions?
Pain catastrophizing
Pain outcomes
Psychometrics
Scaling
Self-report
Journal
Pain reports
ISSN: 2471-2531
Titre abrégé: Pain Rep
Pays: United States
ID NLM: 101683899
Informations de publication
Date de publication:
2021
2021
Historique:
received:
11
09
2020
revised:
05
01
2021
accepted:
24
01
2021
entrez:
13
5
2021
pubmed:
14
5
2021
medline:
14
5
2021
Statut:
epublish
Résumé
Increasingly, studies have documented the negative impact of pain catastrophizing on health outcomes. The Pain Catastrophizing Scale (PCS) has been the measure of choice for many of these studies. The PCS provides 3 subscales for measuring pain catastrophizing: rumination, magnification, and helplessness. Factor analytic investigations of these factors have been limited by the sample size and relevance, and results have been inconsistent. No study has directly estimated the added value of subscale scoring of the PCS compared with scoring it as a single measure. The purpose of this study was to evaluate the dimensionality of PCS responses in a sample of patients with chronic pain (N = 8370). Data were randomly halved, and results were cross-validated. Both traditional factor analysis and traditional factor analyses were conducted. Findings based on common factor analyses and on bifactor analyses supported the essential unidimensionality of PCS responses. In the bifactor analyses, the general factor accounted for 96% of the explained common variance in the modeling sample. After extracting the general factor, helplessness, magnification, and rumination subscales accounted for 7.0%, 0.0%, and 15%, respectively. The results do not necessarily disconfirm helplessness, magnification, and rumination as clinically meaningful theoretical distinctions. However, the PCS (at least as presently constructed) fails to discriminate these distinctions. Joint efforts in theory and measurement science could illuminate the role that posited "kinds" of pain catastrophizing play in individuals' pain experiences.
Identifiants
pubmed: 33981933
doi: 10.1097/PR9.0000000000000909
pii: PAINREPORTS-D-20-0106
pmc: PMC8108592
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e909Subventions
Organisme : NIDA NIH HHS
ID : K24 DA029262
Pays : United States
Organisme : NCCIH NIH HHS
ID : R01 AT008561
Pays : United States
Informations de copyright
Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The International Association for the Study of Pain.
Déclaration de conflit d'intérêts
The authors have no conflicts of interest to declare.Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article.
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