Objective: The purpose of this study was to examine patterns of concurrent cannabis and other substance use and their differential associations with cannabis-related problems and academic outcomes in college students. Participants: Participants were undergraduate students (N = 263; M age = 19.1 years; 61.2% female) who were eligible if they used…

Objective: To determine the differences in internalizing symptoms between those who met criteria for Cannabis Use Disorder (CUD) and those who did not in young adults attending a Historically Black College or University (HBCU). Participants: The sample included 619 undergraduate students, with 110 (18%) who met criteria for CUD. Methods:…

Cannabis legalization has rapidly spread throughout the United States and is associated with multiple public health outcomes, including driving under the influence of cannabis (DUIC). To improve understanding of the relationship between legalization and DUIC, we tested two potential mediators of this relationship: perceived safety and perceived…

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…

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…

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…

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…

Objective: The impact of cannabis use disorder (CUD) on education functioning and GPA was examined within the context of co-occurring alcohol use disorder (AUD), major depressive disorder (MDD), and post-traumatic stress disorder (PTSD). Participants: Undergraduates (N = 210) who reported using cannabis within the past six months were recruited.…

Because studies examining youth drug use often have data with a high proportion of zeros, they often do not meet the assumptions for univariate or linear regression analyses that are typically used. We demonstrate the use of zero-inflated negative binomial regression models to address excessive zeros in drug use frequency on perceptions of…

Objective: To compare the prevalence and trajectories of risky health behaviors in sexual minority (SM; lesbian/gay/bisexual/questioning/asexual) versus heterosexual undergraduates across their first year of post-secondary. Participants: First-year undergraduates (N = 704, M[subscript age] = 17.97 years, 24% SM) from a midsized Canadian…

Background: School-based substance use prevention is important, yet many educators are not trained in the curriculums. The purpose of this study was to assess changes in educators' knowledge about substances and confidence in delivering drug education before and after participating in educator trainings, as well as overall perceptions of the…

Objective: The current study examined the mediating role of distress tolerance on the association between pain-related disability and addiction to opioids, past-month opioid use, and risky opioid use among an ethno-racially diverse sample of young adults with current pain. Methods: Participants were 141 undergraduate college students (78.7%…