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Published on: August 1, 2019
Development and validation of a survey to assess patient-perceived medication knowledge and confidence in medication
Background And Purpose:
The primary objective of this study is to establish the validity and reliability of a perceived medication knowledge and confidence survey instrument (Okere-Renier Survey).
Methods:
Two-stage psychometric analyses were conducted to assess reliability (Cronbach's alpha > .70) of the associated knowledge scale. To evaluate the construct validity, exploratory and confirmatory factor analyses were performed.
Results:
Exploratory factor analysis (EFA) revealed three subscale measures and confirmatory factor analysis (CFA) indicated an acceptable fit to the data (goodness-of-fit index [GFI = 0.962], adjusted goodness-of-fit index [AGFI = 0.919], root mean square residual [RMR = 0.065], root mean square error of approximation [RMSEA] = 0.073). A high internal consistency with Cronbach's a of .833 and .744 were observed in study Stages 1 and 2, respectively.
Conclusions:
The Okere-Renier Survey is a reliable instrument for predicting patient-perceived level of medication knowledge and confidence.
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