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- Title
Internal consistency reliability of the Revised Illness Perceptions Questionnaire: A systematic review and reliability generalization meta-analysis.
- Authors
Rivera, Eleanor; Levoy, Kristin; Park, Chang; Villalobos, Azucena; Martin, Paige; Jung Kim, Min; Hirschman, Karen B
- Abstract
The Revised Illness Perception Questionnaire (IPQ-R) assesses patients' perspectives of their illnesses. Original psychometric testing occurred in limited populations. The purpose of this reliability generalization meta-analysis was to: (1) estimate internal consistency reliability of each IPQ-R subscale, and (2) test moderators of these estimates. Web of Science was searched in July 2022 for articles citing the original IPQ-R paper that reported IPQ-R reliability data. Cronbach's alphas (⍺) were pooled for each IPQ-R subscale using inverse variance weighting and DerSimonian and Laird estimation. Sixty-six studies met criteria. Overall pooled ⍺ estimates were acceptable: 0.71–0.87. Treatment control reliability was reduced among cardiac (⍺ = 0.68), diabetes/kidney disease (⍺ = 0.63), and mixed/other (⍺ = 0.66) samples; cyclical reliability was reduced in cancer (⍺ = 0.65) samples. Age, gender, and race were also significant moderators. Subscale reliability varied based on sample characteristics. Adapting IPQ-R subscales to account for sample variation could improve measurement of illness perception constructs.
- Subjects
CHRONIC diseases &; psychology; BIBLIOGRAPHIC databases; CARDIOVASCULAR diseases; RESEARCH funding; RESEARCH evaluation; QUESTIONNAIRES; HEALTH; SEX distribution; META-analysis; AGE distribution; SYSTEMATIC reviews; KIDNEY diseases; TUMORS; RELIABILITY (Personality trait); PATIENTS' attitudes
- Publication
Journal of Health Psychology, 2024, Vol 29, Issue 7, p734
- ISSN
1359-1053
- Publication type
Article
- DOI
10.1177/13591053231221351