An emerging body of research documents a relationship between sleep quantity and delinquency during adolescence. Absent from this line of research, however, is an evaluation of whether the associations between sleep duration and different forms of delinquency vary across periods of adolescence and sex. The current study aimed to address this gap…

Smartphones are the principal instrument for internet access among adolescents and pre-adolescents in many industrialized countries. However, research on the long-term correlates of age at first access to these devices concerning life outcomes is scarce. This study contributes to the literature by collecting data from 3,247 Italian students in…

This study theorizes and tests moderators (perceived availability of marijuana and age-group) of the association between adolescents' frequency of marijuana ad exposure and past-year marijuana use. To test this model, I analyzed national survey data from 9,024 American adolescents with hierarchical regression techniques. Results showed that being…

Objective: Despite growing awareness about the harmful physiological effects of energy drinks, especially among young people, there is little regulation governing the marketing and sale of these products to adolescents. Thus, in contrast to substances such as cigarettes and alcohol, energy drinks are readily available to adolescents, and widely…

Hispanic adolescents have high expectations for their own educational attainment, but educational attainment outcomes for Hispanic young adults are relatively low on average. Limited scholarship links Hispanic adolescents' educational expectations with attainment in adulthood. Using a longitudinal within-group approach, the authors examined…

Monitoring the Future (MTF) is a long-term study of substance use and related factors among U.S. adolescents, college students, and adult high school graduates through age 55. It is conducted annually and supported by the National Institute on Drug Abuse. MTF findings identify emerging susbstance use problems, track substance use trends, and…

This volume presents new 2018 findings from the U.S. national Monitoring the Future (MTF) follow-up study concerning substance use among the nation's college students and adults from ages 19 through 60. The authors report 2018 prevalence estimates on numerous illicit and licit substances, examine how substance use differs across this age span, and…

Substance use is a leading cause of preventable morbidity and mortality; it is in large part why, among 17 high-income nations, people in the U.S. have the highest probability of dying by age 50. Substance use is also an important contributor to many social ills including child and spouse abuse, violence more generally, theft, suicide, and more;…

The present volume presents new 2017 findings from the U.S. national Monitoring the Future (MTF) follow-up study concerning substance use among the nation's college students and adults from ages 19 through 55. The authors report 2017 prevalence estimates on numerous illicit and licit substances, examine how substance use differs across this age…

The authors examine the factors influencing mathematics homework interest for Chinese students and compare the findings with a recent study involving U.S. students. The findings from multilevel analyses revealed that some predictors for homework interest functioned similarly (e.g., affective attitude toward homework, learning-oriented reasons,…

This study investigated school exclusion's relationships with student characteristics, mother characteristics, parental involvement, school location, and service provision. The researchers examined data from 4,837 students in seventh to 12th grade extracted from a national data set. Multivariate results showed that student's age, gender,…

This nonexperimental study explored the relationships among individual differences, contextual variables, and reading achievement of English language learners (ELLs) in one large urban school district in the United States. The sample comprised 840 students in Grades 3-8 and 10 nested within 37 schools. Hierarchical linear modeling results indicate…

This article contributes new evidence on the associations among immigrant generation, gender, and sexual risk behavior among Latino adolescents in the United States. Longitudinal data from 3,272 Latino adolescents (grades 7-12) who participated in the National Longitudinal Study of Adolescent Health (Add Health) were examined for evidence of the…

The study compares faculty and school demographics in selected high school science classrooms to expand the research on women with careers in science. The classrooms are either situated in "high need Local Education Agencies" or the classrooms are situated in "low-performing schools," as categorized by the Florida Department of…

This study explores developing conceptions of feminism among Latina adolescents, their prevalence of feminist endorsement, and whether home environment and well-being are related to feminist identity. One hundred and forty Latina girls (Grades 9 to 12, M age = 15) wrote personal narratives of their understanding of feminism and whether they…