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Validation of the Czech Modified Yale Food Addiction Scale in a Representative Sample of Adolescents: Connections with Body Mass Index and Impulsivity

Czech Republic records one of
the highest prevalence levels of obesity in comparison
to other European and world countries. The present
study aims to fill a gap in the use of tools in research
of food addiction (FA), which is believed to be one
factor in the high prevalence of obesity. METHODS: A
pen-and-paper study was conducted using a nationally
representative non-clinical sample of 3950 adolescents
aged 11–19. RESULTS: The FA prevalence rate was 4.1%.
Exploratory and confirmatory factor analyses verified
a one-factor structure. The reliability corresponded to
KR = 0.80, CI95% = (0.79, 0.81), McDonald’s ω = 0.79 (0.86
for continuous scale). The connection between FA and
impulsivity was confirmed using Poisson regression
and logistic regression, and the prevalence of FA
decreases with lower impulsivity. CONCLUSIONS: The
study findings suggest that the Czech version of mYFAS
2.0 is a reliable tool for research purposes with regard
to the Czech environment. Further research should
incorporate additional personality traits to obtain a more
comprehensive understanding of the emerging topic
of food addiction.

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