Development and validation of a survey to assess patient-perceived medication knowledge and confidence in medication use.
OBJECTIVE
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.
Arinze Nkemdirim
AN
Okere
Colleen M
CM
Renier
Jacqueline
J
Morse
D005163:Factor Analysis, Statistical; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D055118:Medication Adherence; D059065:Medication Reconciliation; D008875:Middle Aged; D017060:Patient Satisfaction; D010361:Patients / Q000523:psychology*; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires