Marijuana use among U.S. college students is the highest since the mid-1980s. Because knowledge about marijuana and confidence in the knowledge are related to changing marijuana laws and marijuana-related messages ubiquitous in college students' information environment, we examined their relationships with use. The Structural Equation Modeling…

For reasons explored within the paper, adolescents excluded from mainstream education are more likely to use cannabis regularly. Research into the cannabis use (CU) of adolescents excluded from mainstream school in the United Kingdom (UK) is limited and seldom focuses on what students perceive as effective support. In this exploratory study,…

This experimental 2 x 4 ANOVA study addressed the effects of marijuana-based prevention messages delivered to adult college students. The study examined the variables of sex assigned at birth, by prevention messages to determine the impact of media messages to influence internalized beliefs about marijuana. This study is unique in that it focused…

Objectives: This study investigates whether recreational marijuana legislation and perceived social norms (descriptive and injunctive) affect college students' propensity to share pro-marijuana messages. We examine which referent group (close friends, typical student, parents) most influence those norms. Participants: A sample of 343 college…

Objective: Electronic nicotine delivery system (ENDS) use on college campuses increased dramatically in recent years. Little is known about how ENDS use among college students relates to other substance use. Participants: Undergraduates (n = 3,917) at a mid-sized Midwestern public university in the United States. Methods: Cross-sectional survey…

Objective: To examine the Acquired Preparedness Model using a behavioral impulsivity facet and positive marijuana expectancies to examine direct and indirect effects on marijuana use and related problems. Participants: 250 college students (61.7% female, 54% white) recruited from a southeastern university. Methods: Participants completed an online…

This review analyzed the effectiveness of mandated substance use interventions in reducing future cannabis or other illicit drug use. Findings indicated that early decreases in cannabis and other drug use are commonly reported among students participating in mandated interventions. The longer time elapses post-intervention, the more likely…

Objective: To test if intercollegiate athlete status moderates various alcohol and marijuana use relationships in a large college student sample. Participants: Students (n = 9,594, 58% White, 66% female, 8% athletes) from 16 four-year and 4 two-year public institutions in the Northeast were surveyed in Fall 2019. Method: An anonymous, web-based…

Background: High cannabis use rates among American Indian (AI) adolescents necessitate the identification of factors that protect against early cannabis initiation. Methods: Data collected from 279 AI middle school students attending reservation-based schools in 2018 and 2019 were analyzed. Three waves of data, with approximately 6 months between…

Substance use in adolescence is a significant public health issue, particularly in early-to-mid adolescence, which represents a window of risk in the etiology of substance abuse and dependence. Substance use during this development period often results from affiliation with deviant peers, who model, facilitate, and reinforce use. Existing…

Objective: The interrelationships between cannabis use disorder (CUD), post-traumatic stress disorder (PTSD) and depressive symptoms, and non-suicidal self-injury (NSSI) were examined. Participants: Undergraduates (N = 363) who reported using cannabis within the past six months were recruited. Method: Mediation analyses was conducted to examine if…

Rates of suicidal thoughts and behaviors (STB, i.e., suicidal thoughts, plans, and attempts), substance use, and bullying victimization are higher among lesbian, gay, bisexual, transgender, and/or queer (LGBTQ+) youth compared to their heterosexual peers. However, research examining the interactive and potentially compounding associations of…

The purpose of this occasional paper is to compare point estimates and trends included in the Monitoring the Future (MTF) Panel Study annual report: "National Data on Substance Use among Adults Ages 19 to 60, 1976-2021" prepared using historical post-stratification weights, with the same point estimates and trends obtained when using MTF…

Neighborhood-level collective efficacy protects Black youth from substance use; however, neighborhood research does not account for the entirety of adolescents' exposure or their perceptions of space which may be critical to understanding the role of context in substance use. To address this limitation, the SPIN Project recruited 65 Black…

Objective: Food service employment is associated with substance use, risk of substance use disorders and various negative consequences. Previous research has not examined the substance use patterns of students employed in food service positions. Method: During Fall of 2018, 276 undergraduates completed an anonymous online survey regarding current…