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Volume 9, Issue 4 (2021)
Health Educ Health Promot 2021, 9(4): 395-402 |
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History
Received: 2021/04/21 | Accepted: 2021/05/3 | Published: 2021/11/12
Received: 2021/04/21 | Accepted: 2021/05/3 | Published: 2021/11/12
How to cite this article
Ghasemi M, Ghofranipour F, Shahbazi H, Aminshokravi F. Skills of Health-Workers in Providing a Self-Care Program for Pre-Diabetic Individuals; Psychometrics of a Questionnaire. Health Educ Health Promot 2021; 9 (4) :395-402
URL: http://hehp.modares.ac.ir/article-4-51849-en.html
URL: http://hehp.modares.ac.ir/article-4-51849-en.html
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1- Department of Health Education & Health Promotion, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Abstract (3137 Views)
Aims: This research aimed at designing and psychometric properties of a questionnaire for health-worker skills evaluation to obtain a self-care program for pre-diabetic patients.
Instrument & Methods: The questionnaire's psychometric properties were evaluated utilizing face validity by 15 health workers, content validity was evaluated by ten experts (5 health education and health promotion experts, three diabetes experts, and two general practitioners), and construct validity, internal consistency, and stability were assessed by 400 health workers who were randomly selected.
Findings: Due to the results of investigating the texts and interviews, the initial questionnaire, including 54 phrases, was presented. In the face validity section, eight expressions were removed quantitatively. Then, in identifying content validity, three other words were deleted, and the questionnaire was reduced to 43 phrases in general. This questionnaire's exploratory factor analysis revealed four factors: self-efficacy, attitude, reinforcing factors, and enabling factors. These four factors explained 57.51% of the total variance of the test. The confirmatory factor analysis results also confirmed the factors of the PRECEDE-PROCEED model. Cronbach's alpha and intra-cluster correlation index for questionnaire structures ranged from 0.87-0.88 and 0.87-0.88, respectively.
Conclusion: The designed questionnaire has good validity and reliability.
Instrument & Methods: The questionnaire's psychometric properties were evaluated utilizing face validity by 15 health workers, content validity was evaluated by ten experts (5 health education and health promotion experts, three diabetes experts, and two general practitioners), and construct validity, internal consistency, and stability were assessed by 400 health workers who were randomly selected.
Findings: Due to the results of investigating the texts and interviews, the initial questionnaire, including 54 phrases, was presented. In the face validity section, eight expressions were removed quantitatively. Then, in identifying content validity, three other words were deleted, and the questionnaire was reduced to 43 phrases in general. This questionnaire's exploratory factor analysis revealed four factors: self-efficacy, attitude, reinforcing factors, and enabling factors. These four factors explained 57.51% of the total variance of the test. The confirmatory factor analysis results also confirmed the factors of the PRECEDE-PROCEED model. Cronbach's alpha and intra-cluster correlation index for questionnaire structures ranged from 0.87-0.88 and 0.87-0.88, respectively.
Conclusion: The designed questionnaire has good validity and reliability.
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