The meta-analysis, that included 75 studies, examined the relationship between illegal drug consumption, on the one hand, and student academic and behavioral outcomes, on the other, for the middle school to college grade levels. The meta-analysis first (research question #1) addressed whether there is a statistically significant relationship…

This study aimed to (i) describe concurrent and simultaneous tobacco and cannabis use and (ii) investigate the association between cannabis use and motivation and intentions to quit tobacco in a sample of socioeconomically disadvantaged smokers. A cross-sectional survey was conducted in 2013 and 2014 with current tobacco smokers receiving aid from…

Attention-deficit/hyperactivity disorder (ADHD) is characterized by multiple symptoms related to either hyperactivity/impulsivity or inattention and significant impairment. College students with ADHD experience greater impairment than their typical peers, including substance use behaviors. Although the use of alcohol, tobacco, and illicit drugs is…

This research attempts to explore the implications of Bill C-45: The Cannabis Act and how this could influence educational policy in schools. The researchers sought the perspectives of multiple stakeholders involved in education, specifically their views on mitigating the transition, and other topics such as attitudes towards policy change, drug…

Aims: To critically investigate the extent of normalisation of the use of cannabis by undergraduate students. To examine the extent of peer accommodation, this paper focuses on attitudes of students who abstain. It sheds light on social meanings of the practice by exploring non-users' reasons for abstaining in addition to their attitudes,…

We propose some theoretical and empirical advances by supplying the methodology for analyzing the factors that influence two sensitive variables when data are collected by randomized response (RR) survey modes. First, we provide the framework for obtaining the maximum likelihood estimates of logistic regression coefficients under the RR simple and…

The UK has the highest rate of cannabis use among young people worldwide. Dr. Alan Leshner, Director of the National Institute of Drug Abuse reports, "Every year more than 100,000 people, most of them adolescents, seek treatment for their inability to control their marijuana use." According to the Scottish Drug Misuse Statistics in…

Previous research indicates that the disproportionate distribution of income within society is associated with aggression and violence. Although research has been conducted identifying the relationship between income inequality and bullying victimization and perpetration, little is known about possible mediators. We investigated the association…

This paper investigates how legal cannabis access affects student performance. Identification comes from an exceptional policy introduced in the city of Maastricht which discriminated legal access based on individuals' nationality. We apply a difference-in-difference approach using administrative panel data on over 54,000 course grades of local…

Cannabis is the most frequently used illicit drug by Australian secondary school students yet there is scant research investigating school staff responses to student cannabis use. As such, this study surveyed 1,692 school staff who attended "Generation Next" seminars throughout Australia. The self-complete survey identified that the…

We present results of a randomized, controlled, efficacy trial of a handbook intervention for parents of first-year college students. The aim of the interactive intervention was to decrease risk behaviors by increasing family protective factors. The handbook, based in self-determination theory and the social development model, provided…

The purpose of this quantitative causal-comparative study was to determine the frequency of marijuana use by California university students based on gender and ethnicity. This study was important because marijuana is the most used illicit substance in the United States, and there is limited research regarding the demographic characteristics of…

Mixed methods longitudinal studies continue to be rare, yet have potential for transcending the limits of qualitative and quantitative paradigms. This article compares the life stories of 47 young people generated from a cohort study of 6000 children born in 1995. The cases were sampled through an association between two variables--drug use and…

This report is designed to provide useful information about marihuana to citizens for their education and enlightenment, and to Federal, state and local officials charged with making and recommending public policy concerning the use of marihuana. An attempt is made to describe the present state of knowledge, summarize progress made in the past…

This edition, the sixth in the series of annual reports, is a nontechnical summary updating developments in marihuana research with selected references from the fifth edition. Areas of discussion include: (1) nature and extent of marihuana use in the United States; (2) marihuana use among high school seniors; (3) an overview of use trends; (4)…