Psychometrics of the Persian Version of the Covid-19 Vaccine Acceptance Behavior Questionnaire based on Multi-Theory Model in Students in Yazd City

Seyed Saeed Mazloomy  Mahmoodabad; Nooshin  Yoshany; Mahdieh Khaleghi  Moori; Mohammad Ali  Morowatisharifabad; Mohammad  Sharif Yazdi; Farimah  Shamsi

doi:10.18502/ssu.v33i8.20047

Seyed Saeed Mazloomy Mahmoodabad Department of Health Education and Health Promotion, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Nooshin Yoshany Department of Health Education and Health Promotion, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mahdieh Khaleghi Moori Department of Health Education and Health Promotion, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mohammad Ali Morowatisharifabad Department of Health Education and Health Promotion, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mohammad Sharif Yazdi Department of Health Education and Health Promotion, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Farimah Shamsi Healthcare Data Modeling Center, Department of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

DOI: https://doi.org/10.18502/ssu.v33i8.20047

Keywords: Psychometrics, Vaccine acceptance, Covid-19, Multi-theoretical model, Students.

Abstract

Introduction: Given the importance of preventive behaviors against COVID-19, especially vaccination, a study was conducted to psychometrically evaluate the Persian version of the COVID-19 Vaccine Acceptance Behavior Questionnaire among students in Yazd City, aiming to provide a reliable instrument based on a multi-theoretical model.

Methods: The standard questionnaire designed by Sharma was translated from English to Farsi employing the standard "forward-backward" method. Two health experts translated the items separately, while two others translated the answer categories, resulting in a temporary version was prepared. It was subsequently translated back into English, and the final version was presented following thorough cultural adaptation. The face validity, content, structure and reliability of the final Persian version were examined by a panel of experts. Analyzes were conducted using SPSS version 16 and Amos software.

Results: Based on the results obtained from the calculation of content validity ratio (CVR) for the specified questionnaire items, all 13 items were assessed for acceptance. The questionnaire’s content validity index (CVI) was calculated to be high (0.95), suggesting the suitability of the final questionnaire. The fit index was 0.963. The evaluation of the goodness of fit indices for the model showed that all the indices confirmed the proper fit of the final model. The results of Cronbach's alpha coefficients indicated that the questionnaire exhibits high internal consistency (0.792). Cronbach's alpha coefficient for intracluster correlation (0.753) was acceptable.

Conclusion: The findings indicated that the vaccine acceptance behavior questionnaire based on the multi-theory model has acceptable reliability and validity.