Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
An Investigation of Validity and Reliability of a Questionnaire for Use-Patterns of Household Cleaning, Personal Care, and Cosmetic Products



Nasri O1 ; Yunesian M1, 2 ; Alimohammadi M1, 3 ; Shalyari N1 ; Masoomi S4 ; Shamsipour M2, 5
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Research Methodology and Data Analysis, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Center for Water Quality Research, Institute for Environmental Research, Health Equity Research Center, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Center for Air Pollution Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

Source: Iranian Journal of Health and Environment Published:2020

Abstract

Background and Objective: Regular use of household cleaning products and cosmetics can result in adverse consequences for human health. Therefore, the knowledge of consumption pattern of these products can help to evaluate the effects and finally control the consequences of their inappropriate application. As there is not an appropriate tool for evaluating public use-pattern for these products in Iran, we studied the reliability and validity of a questionnaire designed for the use-patterns of these products. Materials and Methods: In the present study, a questionnaire, which was to previously applied in similar studies for this purpose, was first translated Persian. Then, some changes were made in the questionnaire according to the studied population. In the next step, the assessment of both content validity and face validity of the instrument was performed. Finally, the questionnaire reliability was studied in two test-retest steps at a 14-day interval with 40 subjects.older than 14 years old being resident in Tehran city Results: Total Content Validity Index (CVI) of this questionnaire ranged 0.66-1 for all question items. Cronbach’s alpha coefficient was 0.814. The correlation assessment of each question item based on the total correlation score showed that all questionnaire items had a direct and strong correlation with the total instrument score. Conclusion: Given the acceptable validity and reliability obtained for the questionnaire in Persian in this study, it can be used in those investigations that evaluate use patterns or asses the exposure risks to chemical pollutants from cosmetic products or detergents. © 2020, Tehran University of Medical Sciences. All rights reserved.