Several risk and protective factors are influential in predicting who uses or abstains from illicit substances during the high school years. The 2014 national cohort data from the Monitoring the Future survey shows the demographics, psychosocial factors, and attitudes regarding substance use that predict abstention by twelfth-graders (versus those…

The issue of delinquency among truant youths is insufficiently documented in the literature. There is a need to elucidate this issue, and assess the efficacy of interventions to reduce this problem behavior. The present National Institute on Drug Abuse (NIDA)-funded study addressed this gap by examining the impact of a Brief Intervention (BI),…

School truancy among teenagers remains a serious national problem, as evidenced by its significant association with school performance, psychological, and behavioral problems. Truancy is also positively associated with substance abuse. This study presents 18-month outcome data from a National Institute on Drug Abuse (NIDA)-funded controlled trial…

Truant youths are likely to engage in a number of problem behaviors, including sexual risky behaviors. As part of a National Institute on Drug Abuse (NIDA)-funded, prospective intervention project, a sample of truant youths' sexual risk behavior was tracked over five time points. Analyses of the data was informed by four objectives: (a) determine…

Few studies investigating the validity of marijuana use have used samples of truant youths. In the current study, self-reports of marijuana use are compared with urine test results for marijuana to identify marijuana underreporting among adolescents participating in a longitudinal brief intervention for drug-involved truant youths. It was…

Research on samples of truant adolescents is limited, with little known about mental health problems among truant youths. This study provided an exploratory, multilevel examination of mental health problems for a sample of 300 truant adolescents. Confirmatory factor analysis indicated a single factor of multiple mental health problems at the…

Substance use and sexual risk behaviors are common among adolescents, but research has focused attention on alcohol use. Much less is known about the relationship of marijuana use and sexual risk behavior among high-risk, especially truant, youths. We report interim findings from a NIDA-funded experimental, brief intervention (BI) study involving…

The relationship between substance use, mental health disorders, and delinquency among youth is well documented. What has received far less attention from researchers is the relationship between these issues among truant youth, in spite of studies that document truants are a population at risk for negative outcomes. This study bridges this gap by…

This study used latent class regression to identify latent trajectory classes based on individuals' diagnostic course of substance use disorders (SUDs) from late adolescence to early adulthood as well as to examine whether several psychosocial risk factors predicted the trajectory class membership. The study sample consisted of 310 individuals…

The Teen Addiction Severity Index-Two (T-ASI-2) was developed as an extension of the T-ASI to assess the severity of substance abuse and related problems among adolescents (N = 371) 12-19 years of age. The T-ASI-2 consists of 18 domains that assess current use of alcohol, tobacco, marijuana, and other drugs, as well as mental health service…

In recent years the pace has been accelerating by which changes in the Diagnostic and Statistical Manual of Mental Disorders (DSM) systems are made. Revisions occur before extensive empirical knowledge can be drawn upon to guide these changes. For substance use disorders, the criteria have undergone changes from DSM-III to DSM-III-R, and from…

Objective: To describe the late adolescent drug use outcomes from a relatively large, community-identified sample of children with attention-deficit/hyperactivity disorder (ADHD) who have been assessed longitudinally from childhood through late adolescence. Method: Adolescent drug use outcomes were compared between ADHD-only (n = 27),…