Validity and reliability of a questionnaire to investigate people prone to accidents in different industries.

Objectives. In recent years, workplace accidents have imposed a considerable cost on industries. Accident proneness is one of the most influential factors known to cause unsafe behaviors and occupational accidents. Therefore, the present study investigated the validity and reliability of the accident proneness questionnaire in industries. Methods. The questionnaire was developed to measure accident proneness in industries - the developed instrument was distributed in East Azarbaijan industries (1100 questionaries). Content validity, confirmatory factor analysis and exploratory factor analysis were used to examine the construct validity, and Cronbach's α and the test-retest method were used to examine the reliability and reproducibility of the instrument. Results. In the face validity section, the impact score of all items was determined to be >1.5. In the content validity section, the content validity index (CVI) and the content validity ratio (CVR) were higher than the standard value of 0.42. The Cronbach's α coefficient for all dimensions was 0.914. Conclusion. The findings of the study show that the accident proneness questionnaire in industries has acceptable validity and reliability, and can be used as a comprehensive, practical, robust and reliable instrument to investigate the accident proneness of different industries.

Development and psychometric assessment an instrument for investigating Women's attitude toward home safety.

BACKGROUND: Approximately half of the Iranian population are women, and they play a vital role in the home. The women's attitude can play a critical role in the safety of homes. Best of our knowledge, there is not a valid and reliable instrument to measure their attitude toward home safety. So, the present study aimed to design a psychometrics tool to assess women's attitudes toward home safety. METHODS: The researchers designed an instrument based on the home safety concept as the first instrument to measure housewives' attitudes toward home safety. The developed instrument distributed among 686 women in Tabriz health centers. Content validity, confirmatory, and exploratory factor analysis were used to examine the construct validity, and Cronbach's alpha and test-retest were employed to examine the reliability and reproducibility of the instrument. RESULTS: In the face validity section, the impact score of all items was determined to be above 1.5. In the content validity section, 4 items were excluded from the 39 questionnaire items due to low Content Validity Ratio (CVR). The mean CVR of all items was 0.842. By conducting exploratory factor analysis, it was found that the questionnaire has six dimensions. Three questions were removed from the study due to lack of connection with other items. Also, Cronbach's alpha coefficient of the questionnaire is equal to 0.924, which indicates the appropriate reliability of the instrument. CONCLUSIONS: This study aimed to develop a questionnaire to assess the safety attitudes of housewives toward home safety. It was found that the prepared tool has acceptable validity and reliability.

Investigating the status of accident precursor management in East Azarbaijan Province Gas Company.

Purpose. The accident precursor reporting system is a key point in preventing accidents and proper functioning of this system is critical. In the present study, the accident precursor reporting system in the Iranian East Azarbaijan Province Gas Company was investigated. Methods. This quantitative-qualitative study used field survey and document review methods to determine how the company was reporting. Qualitative content analysis approaches were used to analyze the reporting system over a 3-year period. From 1209 accident precursor reports, 2271 codes were extracted. Finally, these codes were reduced to three clusters: 996 (43.86%), 447 (19.68%) and 828 (36.46%) codes related to near misses, unsafe conditions and unsafe acts, respectively. A χ2 test was used to investigate the reporting process. Results. Reporting rates varied by time (e.g., people reported more accident precursors in the first 6 solar months), by area (some areas had higher reporting rates than others) and by type of job (operational jobs had the highest reporting rate [73.16%] compared to non-operational jobs [26.84%]). Conclusion. It was suggested that policy-makers should improve the accident precursor reporting system. Changes to the current reporting system are essential to help in the prevention of future unpleasant accidents.