About this study
Caffeine Use Disorder Questionnaire
Csilla Ágoston, Róbert Urbán, Mara J. Richman, and Zsolt Demetrovics (2018. Caffeine use disorder: An item-response theory analysis of proposed DSM-5 criteria published in Addictive Behaviors
Contact information
Information about this study:Gijsbert Stoet
Contact email: psytoolkit@gmail.com