Development and validation of a questionnaire designed to assess employee satisfaction of environmental health and safety management system (HSE-MS)

Nowadays the importance of health, safety and environment issues is becoming more important as urbanization develops and industrial units grow. Due to the lack of a standard questionnaire to assess staff satisfaction with occupational health, safety and environmental management (HSE-MS) status, the present study aimed to design and validate this tool.

In this study, an initial questionnaire including 60 questions was designed with the help of scientific resources and expert opinion. Then, 12 experts in the field of occupational health and health, safety and environment (HSE) were used to standardize and validate the evaluation questionnaire. Content validity index (CVI) and content validity ratio (CVR) were used to validate the questionnaire. Alpha-Cronbach's test was used to test the reliability of the questionnaire, Pearson's test was used to test the correlation between questionnaire scales and KMO's and Bartlett's test were used to determine factor loadings.

The content validity index and content validity of the questionnaire were 0.88 and 0.83, respectively. Also the internal consistency and reproducibility of this designed questionnaire were reported according to Cronbach's alpha coefficient (0.80). In addition, the results of Bartlett's Spear test showed a significant correlation between the variables and KMO statistic value of 840. Is 0.

The results showed that the designed questionnaire was 0.79 and 0.55 in terms of content validity index and content validity ratio, respectively. The alpha coefficient also indicates that the questionnaire is strong in internal consistency.