Further validation of the 5-item Perceived Efficacy in Patient-Physician Interactions (PEPPI-5) scale in patients with osteoarthritis

Peter M. ten Klooster, J.C.M. Oostveen, Johanna C.M. Oostveen, Linda C. Zandbelt, Erik Taal, Constance H.C. Drossaert, Etelka J. Harmsen, Mart A F J van de Laar

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Objective To examine the structural validity, internal consistency, test–retest reliability, and construct validity of the 5-item Perceived Efficacy in Patient–Physician Interactions (PEPPI-5) scale in patients with osteoarthritis (OA). Methods A cross-sectional sample of 224 outpatients with OA completed a survey containing the Dutch PEPPI-5 and other standardized measures assessing perceived health-management skills, general self-efficacy, social support, and health-related quality of life. A subsample of 100 patients completed the PEPPI-5 again approximately 3 weeks later. Results Confirmatory factor analysis demonstrated good fit for a unidimensional model of the PEPPI-5. Additionally, the scale showed high internal consistency (α = 0.92) and fair test–retest reliability (ICC = 0.68). As hypothesized, the PEPPI-5 was strongly correlated with perceived health-management skills, moderately with social support and psychosocial aspects of health, and not with physical aspects of health. Contrary to expectations, however, it was not correlated with general self-efficacy. Conclusion The Dutch PEPPI-5 demonstrated adequate validity and reliability in patients with OA
Original languageUndefined
Pages (from-to)125-130
JournalPatient education and counseling
Issue number1
Publication statusPublished - 2012


  • IR-83755
  • METIS-290080

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