Initiative Description: The intervention consisted of a school-based cannabis prevention program, with four sessions and 16 activities, implemented over 6-10h, with materials for parents and web-based student involvement
Study Results: Reduced cannabis use
Reference: Ariza, C., Pérez, A., Sánchez-Martínez, F., Diéguez, M., Espelt, A., Pasarí, M.I., … Nebot, M. (2013). Evaluation of the effectiveness of a school-based cannabis prevention program. Drug and Alcohol Dependence, 132(1-2):257-2 64.
Level of Evidence: 
Good