Background Marijuana use during adolescence has various adverse psychological and
health outcomes. It is poorly understood whether the same risk factors influence different …

The present study investigated whether several behavioral and psychosocial factors
measured during early adolescence predicted regular marijuana use 6 years later in a …

Background The study assesses the degree to which individuals in different trajectories of
marijuana use are similar or different in terms of unconventional behavior, sensation …

Background. This study identified similarities and differences in risk factors for marijuana use
initiation from grades 7 to 8, grades 8 to 9, and grades 9 to 10, and examined differences …

OBJECTIVE: To examine the linkages, cultural/ecological factors, and major psychosocial
risk factors as they relate to drug use in a sample from Colombia, South America. METHOD …

Marijuana use in adolescents is associated with many adverse outcomes, including
neurobiological and health consequences. Despite this, little is known about gender …

Tobacco, alcohol, and marijuana are among the most commonly used drugs during
adolescence. Initiation of marijuana use typically peaks at age 15, with risk of initiation …

Objective: This study examines reasons for marijuana use among young adults age 19/20 in
the United States and the extent to which patterns of reasons are associated with marijuana …

Purpose As marijuana laws have become more permissive, survey data on adolescents in
the United States have shown an increase in marijuana-specific risk factors, particularly in …

Objective: Adolescents who regularly use marijuana may be at heightened risk of
developing subclinical and clinical psychotic symptoms. However, this association could be …