Kwaśniak, RobertCudo, AndrzejÁgoston-Kostyál, Csilla2025-07-282025-07-282025https://hdl.handle.net/20.500.12153/8813This study developed a Polish version of the Caffeine Use Disorder Questionnaire (CUDQ) to assess caffeine-related problems in a Polish cultural context. The sample included 853 young adults who had consumed caffeinated beverages in the past year. Confirmatory Factor Analysis confirmed a one-factor structure, and the Polish CUDQ demonstrated good reliability, validity, and partial scalar and strict measurement invariance across gender. These findings support the Polish CUDQ as a valid tool for assessing Caffeine Use Disorder.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/substance use disorderpsychometric assessmentcaffeine use disordercaffeine useDataset