Volume 11, Issue 3 (12-2018)                   ijhe 2018, 11(3): 307-320 | Back to browse issues page

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Ansari M, Dehdari T, Farzadkia M. Design and psychometry a questionnaire to assess the knowledge, attitude and judgment of people about waste management by municipalities. ijhe. 2018; 11 (3) :307-320
URL: http://ijhe.tums.ac.ir/article-1-6115-en.html
1- Health Promotion Research Center, Department of Health Education and Health Promotion, Iran University of Medical Sciences, Tehran, Iran
2- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran AND Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran , farzadkia.m@iums.ac.ir
Abstract:   (1085 Views)
Background and Objective: A scientific questionnaire for assessing the knowledge, attitude and judgment of people on waste management by municipalities has not been developed so far. Therefore, the purpose of this study was to design and validation of an instrument to assess the knowledge, attitude and judgment of people on waste management by municipalities.
Materials and Methods: This analytical study was conducted in District 21 of Tehran in 2017. The initial items of the questionnaire were designed based on previous studies and opinions of the team of specialists and people. Then, the face validity and the content validity of the designed questionnaire was examined. The face validity and the content validity was examined qualitatively and quantitatively, respectively. Finally, the reliability of the attitude and knowledge and evaluation of municipal performance items were measured by Cronbach's alpha and a test-retest method, respectively.
Results: The initial questionnaire had 43 items. In the face validity, 8 items were removed and 8 items were edited. In quantitative content validity, 7 items were excluded, with the content validity index of less than 0.79 and the content validity ratio less than 0.49. Pearson correlation coefficient obtained for knowledge component equal to (r=0.77, p<0.0001) and for component performance (r=0.93, p<0.0001), respectively. Cronbach's alpha coefficient was equal to 0.89 for items attitudes, which were in an acceptable level.
Conclusion: The questionnaire can be used as a valid research instrument to collect information on knowledge, attitude and judgment of people on waste management by municipalities.
 
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Type of Study: Applicable | Subject: General
Received: 2018/08/1 | Accepted: 2018/11/13 | Published: 2018/12/19

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