ArticleJournal of human nutrition and dietetics : the official journal of the British Dietetic Association2026
Cross-Cultural Adaptation and Psychometric Evaluation of the Turkish DESTEK (D-SCOPE) Questionnaire: A Multidimensional Assessment of Dietitians' Knowledge, Attitudes and Preparedness Regarding Dietary Supplements in Türkiye.
Article in Journal of human nutrition and dietetics : the official journal of the British Dietetic Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesThe increasing use of dietary supplements in Türkiye underscores the need for validated instruments to assess dietitians' knowledge, attitudes and self-efficacy regarding supplements. However, no validated Turkish tool is currently available. This study aimed to culturally adapt the Dietitians' Survey of Comfort, Opinions and Preparedness in Education in Supplements (-SCOPE) Questionnaire into Turkish (Diyetisyenlerin Eğitim, Supleman Tercihleri ve Konforu Anketi; DESTEK) and evaluate its psychometric properties.
methodsThis methodological study included 223 dietitians. Exploratory factor analysis (Principal Axis Factoring with Direct Oblimin rotation) was conducted to identify the underlying structure, followed by confirmatory factor analysis to test model fit. Internal consistency was assessed using Cronbach's alpha. Convergent validity was examined through composite reliability and average variance extracted, and discriminant validity was evaluated using the Fornell-Larcker criterion.
resultsA four-factor structure explaining 38.3% of total variance was identified. Sampling adequacy was acceptable (KMO = 0.78; Bartlett's test: χ
conclusionsThe findings provide preliminary evidence supporting the validity and reliability of the DESTEK scale for assessing Turkish dietitians' knowledge, attitudes and perceived preparedness regarding dietary supplements. Given its multidimensional structure, DESTEK may be useful for evaluating specific domains of supplement-related competence; however, further validation in larger and more diverse samples is recommended.
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