Validity and Reliability of Measurement Tool of Public Trust of Health Care Providers

Document Type : Original Article

Authors

1 Department of Health Management and Economics, Research Center for Social Determinates of Health,, Mashhad University of Medical Sciences, Mashhad, Iran

2 Department of Statistics and Epidemiology, School of Public Health, Mashhad University of Medical Sciences, Mashhad, Iran

3 Department of Health Services Management, Research Center for Social Determinates of Health, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

Purpose:
Reducing the level of trust in the health system may lead to consequences such as seeking a secondary view of the disease or lowering the level of acceptance of treatment. Considering the importance of public trust in the health system in achieving its goals, the present study aimed to standardize the public trust in health services providers’ questionnaire.
Methods:
In the present study, the validity and reliability of the instrument for measuring public trust were assessed. This analytical and cross-sectional study was conducted in the first six months of 2018 among citizens of Mashhad, who received services of government hospitals. The validity of this tool was carried out by interviewing 20 specialists using two methods: "Lavashe" and "Walts and Basel". To determine the reliability of the questionnaire completed by 50 citizens, Cronbach's alpha and intra-cluster correlation coefficient were calculated. The results were analyzed using SPSS software version 20.
Results:
In the validity stage based on the opinions of 20 experts, 36 of the 3 questions were queried with CVR less than 0.42 and the connection was less than 0.7. In the remaining 33 questions, the Content Validity Index was acceptable. Questions that had a low resolution and simplicity were reviewed. Cronbach's alpha coefficient and intra-cluster correlation coefficient for the whole questionnaire were 0.83 and 0.81, respectively. After dimensions of the Cronbach's alpha coefficient questionnaire only 2 were less than 0.7.
Conclusion:
Based on the findings of this study, public trust in health care has acceptable validity and reliability. Therefore, policymakers and health care planners can periodically use caregivers to measure public confidence in healthcare providers.

Keywords


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