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Published: 2026-01-15
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DOI: https://doi.org/10.52163/yhc.v67i1.4197
Issue
Vol. 67 No. 1
Section
Articles
How to Cite
Dũng, P. Q., Đắc, L. H., Vĩ, L. H., Lam, N. T. P., Quỳnh, H. H. N., & Giao, H. (2026). CONSTRUCTION AND ASSESSMENT OF A SCALE MEASURING PARENTS’ KNOWLEDGE, ATTITUDES, AND PERCEIVED BEHAVIORAL CONTROL TOWARD DENGUE VACCINATION FOR CHILDREN. Vietnam Journal of Community Medicine, 67(1). https://doi.org/10.52163/yhc.v67i1.4197

CONSTRUCTION AND ASSESSMENT OF A SCALE MEASURING PARENTS’ KNOWLEDGE, ATTITUDES, AND PERCEIVED BEHAVIORAL CONTROL TOWARD DENGUE VACCINATION FOR CHILDREN

Phan Quoc Dung1, Le Huy Dac2, Le Hoang Vi1, Nguyen Thi Phuong Lam1, Huynh Ho Ngoc Quynh2, Huynh Giao2
1 Binh Dong area Medical Center
2 University of Medicine and Pharmacy at Ho Chi Minh city

Main Article Content

Abstract

Objectives: To develop and evaluate the reliability, content validity, and exploratory factor structure of a scale measuring parents’ knowledge, attitudes, and perceived behavioral control toward dengue vaccination for their children.


Method: A cross-sectional study was conducted among 253 parents of primary school children in Ho Chi Minh city in 2025. The questionnaire, consisting of three subscales, was developed based on health behavior theories. Content validity was assessed using the item- and scale-level Content Validity Index (I-CVI, S-CVI) and Cohen’s Kappa (K). Internal consistency was measured by Cronbach’s Alpha, and construct validity was examined using exploratory factor analysis.


Results: Of the participants, 65.4% reported an intention to vaccinate their children against dengue. All subscales demonstrated satisfactory content validity and reliability (Cronbach’s Alpha: 0.70-0.89). Exploratory factor analysis indicated adequate sampling adequacy (KMO ≥ 0.69; Bartlett’s test, p < 0.001). The variance explained was 23.6% for knowledge, 58.4% for attitude, and 44.6% for perceived behavioral control, with factor loadings ranging from 0.36 to 0.84. Higher scores in knowledge, attitude, and perceived behavioral control were significantly associated with stronger intention to vaccinate (p < 0.05).


Conclusion: The developed scale showed good reliability and validity and can be applied in community-based studies to identify factors influencing parents’ intention to vaccinate their children against Dengue

Article Details

Keywords

Dengue fever, vaccine, parents, scale development, reliability, content validity.

References

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