Validity and Reliability of Persian Version of the Patient-Doctor Relationship Questionnaire among Iranian Population in Primary Care
Departmant of Health Service Management, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran.
Introduction: Patient-Doctor Relationship (PDR) as recognised by the patients is one of the significant concepts in primary care. In this regard, PDR Questionnaire (PDRQ-9) shows a brief measure of the treatment dimension in primary care.
Aim: The present research aimed at the evaluation of the reliability and validity of the Persian version of the PDRQ-9 among Iranian population.
Materials and Methods: The research included 208 patients referred to the primary health centers. The study was conducted in Tehran between March and May 2019. The participants completed a 9-item questionnaire. Principal Components Analysis (PCA) and then a varimax rotation were utilised for assessing the PDRQ-9 factor structure. Then exploratory and confirmatory factor analyses were used to assess the scale construct validity. In addition, Cronbach’s alpha coefficient and construction reliability were employed to evaluate reliability of the questionnaire.
Results: Outputs obtained from PCA and considering the meaning of the research items, we could identify a one-factor solution that explained 68.01% of the variance. Moreover, a Confirmatory Factor Analysis (CFA) approved the acceptability of one domain structure of PDRQ-9. In addition, goodness of fit indicators demonstrated reasonable fitness with the full model. Furthermore, Cronbach’s alpha and construct reliability were found to be higher than 0.70.
Conclusion: It has been found that the Persian version of PDRQ-9 possesses a one-factor structure and reasonable reliability and validity in primary care.