Journal of Abnormal Psychology Progression in Substance Use Initiation: A Multilevel Discordant Monozygotic Twin Design
نویسندگان
چکیده
منابع مشابه
Progression in substance use initiation: A multilevel discordant monozygotic twin design.
Considerable attention has been paid to the "gateway" pattern of drug use initiation in which individuals progress from tobacco and alcohol use to cannabis and other illicit drugs. The extent to which this sequence reflects a causal impact of licit substance use on illicit substance involvement remains unclear. Clarifying the mechanisms underlying substance use initiation may help inform our un...
متن کاملCausal influence of age at first drink on alcohol involvement in adulthood and its moderation by familial context.
OBJECTIVE Previous research has established a connection between early age at drinking initiation and greater alcohol involvement in adulthood, but it has not yet been established whether this is a causal effect. The current study used a multilevel discordant twin design to examine individual and contextual effects, and an interaction between these effects, of the age at drinking initiation on ...
متن کاملTest of a potential causal influence of earlier age of gambling initiation on gambling involvement and disorder: a multilevel discordant twin design.
The premise that an association between an earlier age of gambling initiation and the later development of disordered gambling is causal has not yet been empirically examined. The current study used a multilevel discordant twin design to examine the nature of this association. Participants were 3,546 same-sex twins (mean age = 37.7 years) from the Australian Twin Registry who completed a teleph...
متن کاملFrom alcohol initiation to tolerance to problems: Discordant twin modeling of a developmental process.
The current study examined a stage-based alcohol use trajectory model to test for potential causal effects of earlier drinking milestones on later drinking milestones in a combined sample of two cohorts of Australian monozygotic and same-sex dizygotic twins (N = 7,398, age M = 30.46, SD = 2.61, 61% male, 56% monozygotic twins). Ages of drinking, drunkenness, regular drinking, tolerance, first n...
متن کامل