INTRODUCTION Nowadays, most of the research studies in the field of adolescent gambling are focused on individual factors related to problem gambling. The aim of this study was to test an integrated model to explain adolescent problem gambling involving both individual (i.e., correct gambling knowledge, superstitious thinking, and gambling-related cognitive distortions) and environmental factors (i.e., parental gambling frequency). In detail, the aim was to better understand the role of parental gambling behavior on adolescents' gambling frequency and problem gambling severity, to draw indications for prevention.

METHODS Participants were 680 parents (36% men; Mage = 48.32, SD = 6.14 years) of 680 high school students (51% boys; Mage = 15.51, SD = .55 years) attending the second year of different high schools in Tuscany (Italy). Data collection occurred within the school prevention program PRIZE (Prevention of gambling risk among adolescents).

RESULTS A path model showed was conducted to detect direct and indirect effects from individual and environmental factors to gambling problem severity. Analyses showed that correct gambling knowledge and superstitious thinking were directly related-respectively in a negative and a positive direction-both to gambling-related cognitive distortions and adolescents' gambling frequency. Parental gambling frequency was directly associated with adolescents' gambling frequency. Correct gambling knowledge and superstitious thinking were indirectly related to adolescents' gambling problem severity through the mediational role of gambling-related cognitive distortions and gambling frequency. Parental gambling frequency was indirectly linked to gambling problem severity by passing through adolescents' gambling frequency.

CONCLUSIONS The current cross-sectional results confirm that parental gambling behavior has an important role for adolescents' gambling behavior and severity. Thus, results highlight the need for innovative prevention programs which involve adolescents' adult reference figures and integrate the individual risk and protective factors with the environmental ones.