Objective: Electronic cigarette use represents an important college health concern. This investigation assessed demographic and behavioral correlates associated with actual and perceived e-cigarette use among a national sample of American college students. Methods: Respondents (n = 19,861) comprised college students from over 40 distinct American…

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…

Social network research has evidenced the role of peer effects in the adoption of behaviours. Little is known, however, about whether policies affect how behaviours are shared in a network. To contribute to this literature, we apply the concept of diffusion centrality to school tobacco policies and adolescent smoking. Diffusion centrality is a…

Objective: The first aim of this study was to examine changes in freshman college students' health-enhancing physical activity (PA) and body composition across the first semester. Secondly, this study aimed to explore the role of socio-ecological variables on these processes. Methods: A sample of 166 participants (108 females, 58 males,…

Adolescence marks a transitional phase between childhood and adulthood, in which engagement to the maladaptive behaviors is more likely to occur. Alcohol and substance use among adolescents is of particular concern because it may lead to multiple forms of injuries, hospitalizations, and premature mortality. With the wider availability of the…

We use social learning, self-control, and social disorganization theories to develop hypotheses related to tobacco and alcohol use among a racially diverse sample of Chicago adolescents. Data from the Project on Human Development in Chicago Neighborhoods were used to test models that examine relationships between neighborhood-level and…

In this study, we examined how the number of friends and leadership among peers related to e-cigarette use and beliefs about the social consequences of use among college students. Data were collected via web survey from 175 university students in 2016. Regression techniques were used to analyze responses. Neither number of friends nor role in a…

This study measured physical activity (PA) and explored its correlates among children with multimorbidity (co-occurring chronic physical and mental illness; MM) versus those with chronic physical illness only (PI). This study used baseline data from the Multimorbidity in Children and Youth Across the Life Course (MY LIFE) study, an on-going cohort…

Homophobic name-calling and sexual violence are prevalent among US high school students and have been associated with a host of negative consequences including anxiety, depression, and substance use disorders, especially among sexual and gender minority youth. Although homophobic name-calling and sexual violence are linked to common risk and…

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…

Background: Risky sexual behaviors put adolescents at increased risk of adverse outcomes. Parents, school-based adults, and peers play important roles in influencing these sex intentions. Methods: This work explored the influence of parent-child sex communication on adolescent attitudes, perceived norms, and intentions to have sex, including the…

Using participants from an 1-and-1/2-year longitudinal study of smoking socialization (N = 709), we examined peer smoking, and implicit and explicit attitudes on smoking initiation among initial nonsmoking adolescents. We also tested whether implicit and explicit attitudes mediated the effect of peer smoking on smoking initiation, and whether…

Background: Family structure and value system among Hispanic/Latino population are changing. However, very few studies have examined the combination of the influence of family structure, parental and sibling alcohol use, perceived peer norms about drinking, and alcohol use among Hispanic/Latino adolescents. Purpose: This study examined the…

Problem: There is evidence that university students have poor eating behaviors that can lead to short and long term negative health effects. Understanding the influences on eating behaviors will aid universities and health agencies in developing effective healthy eating promotion strategies. Purpose and Method: To determine the impact of a range…

The goal of this study was to examine behavioral norm effects in 2 peer contexts (classroom, school) on adolescent substance use (tobacco, alcohol, cannabis) and aggressive behaviors (bullying, physical fighting). Participants were 5,642 adolescents (M[subscript age] = 14.29 years, SD = 1.26; 49% boys). There were 3 hypotheses. First, behavioral…