Validation of the Shortened Perceived Medical Condition Self-Management Scale in Patients with Chronic Disease

Article


Wild, Marcus G., Ostini, Remo, Harrington, Magdalena, Cavanaugh, K. and Wallston, Kenneth A.. 2018. "Validation of the Shortened Perceived Medical Condition Self-Management Scale in Patients with Chronic Disease." Psychological Assessment. 30 (10), pp. 1300-1307. https://doi.org/10.1037/pas0000572
Article Title

Validation of the Shortened Perceived Medical Condition Self-Management Scale in Patients with Chronic Disease

ERA Journal ID6589
Article CategoryArticle
AuthorsWild, Marcus G., Ostini, Remo, Harrington, Magdalena, Cavanaugh, K. and Wallston, Kenneth A.
Journal TitlePsychological Assessment
Journal Citation30 (10), pp. 1300-1307
Number of Pages17
YearOct 2018
Place of PublicationUnited States
ISSN1040-3590
1939-134X
Digital Object Identifier (DOI)https://doi.org/10.1037/pas0000572
Web Address (URL)https://psycnet.apa.org/doiLanding?doi=10.1037%2Fpas0000572
Abstract

Self-efficacy, or perceived competence, has been identified as an important factor in self-management behaviors and health outcomes in patients with chronic disease. Measures of self-management self-efficacy are currently available for multiple forms of chronic disease. One established measure is the 8-item Perceived Medical Condition Self-Management Scale (PMCSMS). This study investigated the use of the PMCSMS in samples of patients with a chronic disease to develop an abbreviated version of the scale that could be more readily used in clinical contexts or in large population health cohort studies. The PMCSMS was administered as either a generic scale or as a disease-specific scale. The results of analyses using item response theory and classical test theory methods indicated that using 4 items of the scale resulted in similar internal consistency (α = .70-0.90) and temporal stability (test-retest r = .75 after 2 to 4 weeks) to the 8-item PMCSMS (r = .81 after 2 to 4 weeks). The 4 items selected had the greatest discriminability among participants (α parameters = 2.49-3.47). Scores from both versions also demonstrated similar correlations with related constructs such as health literacy (r=.13-0.29 vs. 0.14-0.27), self-rated health (r=.17-0.48 vs. 0.26-0.50), social support (r = .21-0.32 vs. 0.25-0.34), and medication adherence (r = .20-0.24 vs. 0.20-0.25). The results of this study indicate that 4-item PMCSMS scores are equally valid but more efficient, and have the potential to be beneficial for both research and clinical applications.

Keywordsself-efficacy; perceived competence; chronic disease; self-management
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Byline AffiliationsVanderbilt University, United States
University of Queensland
PatientsLikeMe, United States
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