Development and Validation of a Micronutrients Knowledge, Attitudes, and Practices Questionnaire for Adolescents Using Psychometric Analysis.

Introduction The development of a questionnaire that measures knowledge, attitude, and practices towards micronutrients will help to develop nutrition intervention programs. The present study aimed to develop and assess the validity and reliability of a questionnaire on knowledge, attitude, and practices (KAP) on micronutrients in adolescents in India. Methods A total of 150 adolescent girls participated in the study. The literature was reviewed to formulate an initial draft of a questionnaire (122 items). Face and content validity were measured by participants and subject experts, respectively, and the content validity index was calculated. Construct validity was assessed using the principal component method of exploratory factor analysis. Internal consistency and test-retest reliability were determined by Cronbach's α value and interclass correlation coefficient correlations, respectively. Results The content validity index for all items except eight items from the practice subscale was satisfactory. Face validity results showed that participants understood all items. Exploratory factor analysis suggested a four-factor construct (perceived susceptibility and severity, perceived benefits, readiness to change, and perceived barrier) in the attitude subscale. Internal consistency for knowledge, attitude, and practice items were 0.980, 0.840, and 0.930, respectively. For knowledge and attitude items, interclass correlation coefficient correlation estimates ranged between 0.705 to 0.987 and 0.775 to 0.997, respectively, whereas for practice items, it ranged from 0.701 to 0.945. In the final questionnaire, 134 items consisting of 33 knowledge, 21 attitudes, and 80 practices (55 dietary practices and 25 other practices related to micronutrients) were included. Conclusion The results provided evidence of the validity and reliability of the questionnaire on micronutrients and that can be used to assess the knowledge, attitude, and practices on micronutrients in adolescents. Further studies in different diverse settings are recommended.
Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Institutional Ethics Committee, Mahatma Gandhi Mission (MGM) Institute of Health Sciences issued approval MGMIHS/RES./02/2022/178. Animal subjects: All authors have confirmed that this study did not involve animal subjects or tissue. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: This study was funded by the Indian Council of Medical Research (Extramural Research Program). Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.
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