Objective: To assess the psychometric properties of the PSPSQ 2.0, an instrument to measure patient satisfaction with pharmacist services in a clinical setting. Methods: An observational study design was conducted in Ipoh, Perak, Malaysia from February to April 2016. Permission to reuse the questionnaires was granted before testing of the same. Forward and backtranslation was conducted prior to the study for evaluating the equivalence of meaning between the original source and target texts across culture. The questionnaires were administered randomly to participants who have their subsequent visits with a pharmacist at any public or private hospital in Ipoh. Test-retest was carried out in order to evaluate the stability of test over time using Intra-Class Coefficient. Reliability of questionnaire was tested using Cronbach’s alpha coefficient. Collected data were analyzed for their consistency and validity using confirmatory factor analysis. Results: There were 130 respondents for the first time point and 80 respondents during retest. About 60% of the respondents were female; 51.5% were aged 47 and above; mostly Chinese and almost half of the respondents worked in the government sector. The ICC for most items tested for intrarater (test-retest) reliability was good with a majority of items exhibiting coefficients > 0.80. Conclusion: The results suggest that the PSPSQ 2.0 can serve as a reliable and valid instrument to measure patient satisfaction with clinical services provided by pharmacists.
Key words: Patient satisfaction, Pharmacy services, Translation, Validation.