Innovative Questionnaire for Assessing Occupational Exposure to Airborne Chemical Pollutants: Development and Validation
Mahdi Jamshidi-Rastani, Mohammad J. Jafari, Jamal Biganeh, Farid Zayeri, Somayeh Hosseini, Mohammad AtaeiAbstract
Background:
Industrial workers are often exposed to various chemical agents, making awareness of their exposure crucial for disease prevention and health improvement. Consequently, a low-cost and efficient method in this area would be highly beneficial.
Methods and Materials:
In the first stage, factors affecting exposure were extracted from scientific sources and be completed by interviewing experts (initial questionnaire). Then, the questionnaire standardization process (validity and reliability evaluation), face validity, content and structure were checked step by step and in necessary cases. In all these steps, some questions were deleted, some changed, and finally 105 questions remained which entered the next stage.
Results:
In the phase of face validity and quantitative content, respectively, questions with content validity ratio (CVR) and content validity index (CVI), less than 0.51 and 0.71 (32 questions) were deleted and some questions (19 questions) were corrected. The 115-question questionnaire entered the construct validity phase, and finally 105 questions remained. The result of the Kaiser–Meyer–Olkin test for the designed questionnaire was equal to 0.805. For Bartlett’s sphericity test, the value of 21547 = 6 was obtained with
Conclusion:
In the present study, a questionnaire was prepared and validated, which collects all information and objective and nonobjective factors affecting the airborne chemical exposure.