Validity and reliability of the Sports Nutrition Knowledge Questionnaire for the Turkish athletes

Year 2021, Volume: 34 Issue: 1, 45 - 50, 29.01.2021

Burcu Ozener Erdem Karabulut Tugba Kocahan Pelin Bılgıc

https://doi.org/10.5472/marumj.866534

Cited By: 2

Abstract

Objective: The aim of this research is to determine validity and reliability of Sports Nutrition Knowledge Questionnaire (SNKQ) for
the Turkish athletes.
Patients and Methods: A total of 210 participants (n = 125 elite athletes and n = 85 Nutrition and Dietetics Department senior
students) aged 19-30 years were enrolled in the research. SNKQ was evaluated utilizing the psychometric criteria to determine the
reliability of items, test-retest reliability and known groups validity, by significance test (Independent Samples t-Test) of the difference
between the two groups. After two weeks, SNKQ was applied again to some participants (n = 42) with the purpose of assuring testretest
reliability.
Results: The Sports Nutrition Knowledge Questionnaire was detected as valid and reliable according to the high internal consistency
value (Kuder Richardson-20 (KR-20) = 0.927) and high test-retest reliability intraclass correlation coefficient (ICC = 0.974). The
difference between SNKQ total scores of athletes (36.0 ± 8.1) and Nutrition and Dietetics Department students (59.1 ± 5.98) was
statistically significant; thus, the known groups validity was obtained (p < 0.001).
Conclusion: The Sports Nutrition Knowledge Questionnaire is valid and reliable. It can be easily used to determine the nutrition
knowledge level of the Turkish athletes.

Keywords

Sports nutrition, Knowledge, Reliability and validity, Athletes

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