FRANÇAIS :
Depuis une dizaine d'années, des chercheurs s'intéressent aux habitudes de jeu des jeunes et les résultats de leurs travaux démontrent que la majorité des adolescents ont déjà participé à des activités de jeux de hasard et d'argent. La présente étude a pour but d'évaluer l'efficacité d'un programme de prévention des habitudes de jeu chez les adolescents. Les buts du programme de prévention étaient d'améliorer la compréhension de la notion de hasard et de permettre aux jeunes de développer une attitude plus réaliste à l'égard des jeux de hasard et d'argent. L'intervention, présentée en classe par des intervenantes spécialisées dans le domaine des jeux, a duré 3 heures. Un protocole de recherche expérimental (prétest, post test et tests de rappel avec groupe témoin) a servi à vérifier les hypothèses. Les résultats démontrent l'efficacité du programme pour améliorer les attitudes et les connaissances des jeunes. De plus, la participation au programme ne provoque aucun effet iatrogénique sur les habitudes de jeu. Les retombées possibles du programme de prévention, de même que la pertinence d'inclure un volet visant l'enseignement d'une démarche de résolution de problème dans un programme de prévention des habitudes de jeu sont discutées. (Résumé d'auteur)

ENGLISH :
A meta-analysis of North American studies indicates that the prevalence rate of pathological gambling varies between 4.4% and 7.4% among adolescents. Pathological gambling is thus not a phenomenon that suddenly appears once youths reach an adult age. On the contrary, first significant contact with gambling occurs in childhood or adolescence. For this reason, it is important to develop an effective gambling prevention program that will reduce the risk that youths will develop gambling problems. The information promoted in the prevention program our research team created and evaluated here teaches youths to recognize the traps of gambling activities, while enabling them to make an informed decision as to their eventual participation in those activities. The program is based on know ledge and recognition of key indices that can be easily identified as warning signs of a loss of control. It is predicted that youths who participate in this prevention program will improve their knowledge of gambling activities and will develop a more realistic attitude towards those activities than youths from a control group. The experimental groups problem-solving skills are also expected to improve. An experimental design (pre-test, post-test and follow-ups with control group) was used to evaluate the programs effectiveness. Overall, 1 193 youths participated in this study. The prevention program involves three 60-minute meetings. The objectives of these meetings are the following : meeting #1) improve youths knowledge of gambling activities and help them acquire a more realistic attitude towards these activities ; meeting #2) teach a structured problem-solving approach to resist to peer-pressure ; meeting #3) inform youths of the consequences that may be associated with abusive par ticipation in gambling and teach them to recognize warning signs of a loss of control over gambling habits. Dependent variables: (a) knowledge of and attitudes towards gambling and gambling activities ; (b) problem-solving skills ; (c) frequency of participation in gambling activities ; (d) discussion with relatives, friends and teachers regarding gambling acti vities and attention paid towards gambling habits among close friends and family. Participation in the gambling prevention program significantly improves youths" knowledge of the real probabilities of winning and the pitfalls included in gambling activities and favours the development of a more rea listic attitude towards these activities. However, the participation in the prevention program does not help to improve their problem-sol ving skills. Nonetheless, it leads more youths to talk about gambling with their parents and teachers, and enables them to be more aware of the gambling habits of their friends and family. Finally, note that it was impossible to verify any decrease in gambling habits as the majority of participants (62 %) were non or very occasional gamblers. (Author' s abstract)