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. 2025 Feb 28:14:65.
doi: 10.4103/jehp.jehp_498_24. eCollection 2025.

Validity and reliability of the health belief model questionnaire for dietary patterns and physical activity in prediabetes

Nuryani  1   2 , Ali Khomsan  1 , Mira Dewi  1 , Cesilia Meti Dwiriani  1 , Widjaja Lukito  3
Affiliations

Validity and reliability of the health belief model questionnaire for dietary patterns and physical activity in prediabetes

Nuryani et al. J Educ Health Promot. .

Abstract

Background: The health belief model (HBM) questionnaire for dietary patterns and physical activity is important for assessing behavior in prediabetes subjects. Assessing health behavior important to design intervention that can control development of prediabetes. The study aimed to examine the validity and reliability of the HBM questionnaire for dietary patterns and physical activity in prediabetes.

Materials and methods: A descriptive method was used comprising validity and reliability tests; specifically, the content validity was assessed by 10 panelists of nutrition in public health and education experts. Meanwhile, face validity and reliability tests were performed by 10 and 30 respondents, respectively. Content validity was conducted quantitatively with the content validity index (CVI), kappa statistics score, along with qualitative assessment. The reliability test was carried out based on Cronbach's alpha.

Results: The results showed that CVI analysis and kappa statistics obtained values between 0.77-1 and -5.24-0.99, respectively. The face validity analysis produced a value >1,5, while the reliability test obtained Cronbach's alpha value of 0,821. The final questionnaire was based on the recommendations of the panelists as well as the results of validity and reliability tests including 47 HBM item statements.

Conclusions: The HBM questionnaire was found to be valid and reliable for assessing behavior about dietary patterns and physical activity in prediabetic. This instrument could be used by healthcare providers in studies and clinical practice to measure behavior dietary patterns and physical activity as well as to develop interventions for prediabetes.

Keywords: Areliability; health belief model; prediabetes; validity.

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Conflict of interest statement

There are no conflicts of interest.

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