Peter M. ten Klooster|Johanna C. M. Oostveen|Linda C. Zandbelt|Erik Taal|Constance H.C. Drossaert|Etelka J. Harmsen|Mart A F J van de Laar
Further validation of the 5-item Perceived Efficacy in Patient–Physician Interactions (PEPPI-5) scale in patients with osteoarthritis
University of Twente|Ziekenhuis Groep Twente|Academic Medical Center|University of Twente|University of Twente|University of Twente|Medisch Spectrum Twente
examine structural validity internal consistency testretest reliability construct validity 5item perceived efficacy patientphysician interactions peppi5 scale patients osteoarthritis oaa crosssectional sample 224 outpatients oa completed survey containing dutch peppi5 standardized measures assessing perceived healthmanagement skills general selfefficacy social support healthrelated quality life subsample 100 patients completed peppi5 approximately 3 weeks laterconfirmatory factor analysis demonstrated good fit unidimensional model peppi5 additionally scale showed high internal consistency 092 fair testretest reliability icc068 hypothesized peppi5 strongly correlated perceived healthmanagement skills moderately social support psychosocial aspects health physical aspects health contrary expectations however correlated general selfefficacythe dutch peppi5 demonstrated adequate validity reliability patients oathe peppi5 brief appropriate tool measuring selfefficacy patients oa interact physicians additional research sensitivity change needed confidently recommended outcome measure intervention studies