Alcohol and marijuana use, consequences, and perceived descriptive norms: Differences between two- and four-year college students.

Among two-year college students, alcohol and marijuana use, related consequences, and risk factors for use are not well understood. We examined differences between two- and four-year students in alcohol and marijuana use, consequences, and perceived descriptive norms, and explored whether two-year status moderated associations between norms and use. Data were drawn from a cross-sectional subsample of two- and four-year students aged 18-23 ( = 517) participating in a longitudinal study on alcohol use.

Young adult simultaneous alcohol and marijuana use: Between- and within-person associations with negative alcohol-related consequences, mental health, and general health across two-years.

Background: Simultaneous alcohol and marijuana use (SAM) may be linked to both short- and longer-term problems for young adults. Across two years of longitudinal data, we examined between- and monthly within-person associations of alcohol and marijuana use patterns, including SAM, with negative alcohol-related consequences, depressive symptoms, and general health.

Methods: 773 young adults (aged 18-23 at screening; 56% women) who used alcohol in the year prior to study enrollment were surveyed monthly for 24 months.

Negative evaluation of role transitions is associated with perceived stress and alcohol consequences: Examination of the Transitions Overload Model in young adulthood using two years of monthly data.

Background: Young adulthood is characterized by transitions into and out of social roles in multiple domains. Consistent with self-medication models of alcohol use, the Transitions Overload Model (J Stud Alcohol Suppl, 14, 2002, 54) hypothesizes that one cause of increased alcohol use during young adulthood may be the stress of navigating simultaneous role transitions. This study examined the simultaneous occurrence of major developmental role transitions in the domains of education, employment, romantic relationships, and residential status and their associations with perceived stress, heavy episodic drinking (HED), and negative alcohol-related consequences.

Intoxicated driving and riding with impaired drivers: Comparing days with alcohol, marijuana, and simultaneous use.

Background: Young adults who engage in simultaneous alcohol and marijuana (SAM) use may be more likely to engage in unsafe behaviors including riding with impaired drivers and driving after alcohol and/or marijuana use.

Methods: Young adult SAM users (N = 408) self-reported their behavior for five 14-day bursts, yielding daily-level responses on a total of 14,675 substance use days. Adjusted odds ratios (AOR) estimated the likelihood of riding with an impaired driver and of driving after use on SAM use days compared to alcohol- or marijuana-only use days.

Calendar Month Variation in Alcohol and Marijuana Use in a Community Sample of Young Adults.

Objective: Alcohol use among adults varies by season, and drinking among 4-year college students has been linked to holidays and the academic calendar. Little research has assessed calendar-related variation in marijuana use. We examined calendar month variation in alcohol and marijuana use among a sample of young adults that was diverse with respect to college status and educational attainment.

Social norms and vaccine uptake: College students' COVID vaccination intentions, attitudes, and estimated peer norms and comparisons with influenza vaccine.

Background: Vaccination may be critical to curtailing the spread of the SARS-CoV-2 virus responsible for the COVID-19 pandemic, but herd immunity can only be realized with high vaccination coverage. There is a need to identify empirically supported strategies to increase uptake, especially among young adults as this subpopulation has shown relatively poor adherence to physical distancing guidelines. Social norms - estimates of peers' behavior and attitudes - are robust predictors of health behaviors and norms-based intervention strategies may increase COVID vaccine uptake, once available.

What's the Harm in Getting High? Evaluating Associations Between Marijuana and Harm as Predictors of Concurrent and Prospective Marijuana Use and Misuse.

Objective: Substantial research has demonstrated the importance of implicit cognitive processes underlying substance use. However, there is a scarcity of research on implicit processes related to marijuana use. We adapted and tested the predictive validity (concurrent and prospective) of an implicit measure evaluating the strength of associations between marijuana and harm based on research demonstrating less marijuana use among individuals who report stronger explicit attitudes of marijuana's harms.

A Daily Study Comparing Alcohol-Related Positive and Negative Consequences for Days With Only Alcohol Use Versus Days With Simultaneous Alcohol and Marijuana Use in a Community Sample of Young Adults.

Background: Alcohol and marijuana are psychoactive substances commonly used by young adults and are independently associated with numerous acute and long-term consequences. Many young adults engage in simultaneous alcohol and marijuana (SAM) use to cross-fade (i.e.

Patterns of Young Adult Social Roles Transitions Across 24 Months and Subsequent Substance Use and Mental Health.

Young adults experience social role transitions across multiple life domains, and a deeper understanding of the ways in which these simultaneous transition experiences are associated with substance use and mental health will inform targeted interventions for this population. Data from the current study include24 repeated monthly assessments of young adults (N = 778; 56% female; age range 18 to 24 at baseline; 60% White, 18% Asian, 12% Multiracial, 5% Black or African American, 1% American Indian, 1% Pacific Islander, 3% Other, 9% Latinx) and outcomes 6 months later. Monthly assessments across 2 years were used to identify latent classes of frequency of social role transitions in four key domains (education, residential, employment, and romantic relationships) and associations between these classes and later outcomes.

Daily Motives for Alcohol and Marijuana Use as Predictors of Simultaneous Use Among Young Adults.

Objective: Research on substance use motives typically examines each substance separately. However, simultaneous alcohol and marijuana (SAM) use-that is, using alcohol and marijuana at the same time so that their effects overlap-is common among young adults. This study examines day-to-day fluctuations in motives for using alcohol and/ or marijuana among young adult substance users as predictors of alcohol, marijuana, and SAM use across days.

Alcohol motivations and behaviors during months young adults experience social role transitions: Microtransitions in early adulthood.

The study examines how young adult transitions into and out of social roles (i.e., starting or ending a job, a romantic relationship, school) are associated with drinking motives (coping, enhancement, social, and conformity) and alcohol use in a given month.

Descriptive and Prospective Analysis of Young Adult Alcohol Use and Romantic Relationships: Disentangling between- and within-Person Associations Using Monthly Assessments.

Background: Prior research on romantic relationships and alcohol use among young adults has not distinguished between differences in patterns of relationship status over extended periods of time and within-person changes in status that only occur for some individuals.

Objectives: This study captured between-person differences in relationship patterns, assessed associations between relationship patterns and alcohol use, and examined within-person associations between alcohol use and relationship status changes. In addition, age and sex differences in between- and within-person associations were tested.

An Event-Level Investigation of Factors Associated With Young Women's Experiences of Coerced Consensual Sex.

Little is known about instances of coerced consensual sex in which women report both that they consented to have sex and that their partner used coercive tactics (e.g., made threats) to get them to have sex when they did not want to.

Condom-Insistence Conflict in Women's Alcohol-Involved Sexual Encounters with a New Male Partner.

First-time sexual intercourse with a new male partner, relative to other sexual encounters, is associated with heightened risk to women for contracting sexually transmitted infections. Little is known, however, about women's condom-related decision-making processes during these first-time sexual encounters. In the present study, we surveyed a community sample of 179 women aged 18-30 about their alcohol consumption, desire to use a condom, perception of their partner's desire to use a condom, condom-insistence conflict, and condom-decision abdication and use during their most recent alcohol-involved first-time sexual encounter with a new partner.

Longitudinal Change in Women's Sexual Victimization Experiences as a Function of Alcohol Consumption and Sexual Victimization History: A Latent Transition Analysis.

Objective: Women's alcohol consumption and vulnerability to sexual victimization (SV) are linked, but findings regarding the nature and direction of the association are mixed. Some studies have found support for the self-medication hypothesis (i.e.

Partner Type, Sexual Double Standard Endorsement, and Ambivalence Predict Abdication and Unprotected Sex Intentions in a Community Sample of Young Women.

In-the-moment ambivalence about having sex may influence sexual decisions but has rarely been examined. We investigated how ambivalence about sex might be related to intentions to abdicate sexual decisions to a male partner and to engage in unprotected sex in a community sample of young women. Predictors of abdication and unprotected sex intentions included partner type (new casual versus previous relationship), sexual double standard (SDS) endorsement, and two types of ambivalence.

Influences of acute alcohol consumption, sexual precedence, and relationship motivation on women's relationship and sex appraisals and unprotected sex intentions.

Guided by the cognitive mediation model of sexual decision making (Norris, Masters, & Zawacki, 2004. Cognitive mediation of women's sexual decision making: The influence of alcohol, contextual factors, and background variables. , , 258-296), we examined female social drinkers' ( = 162) in-the-moment risky sexual decision making by testing how individual differences (relationship motivation) and situational factors (alcohol consumption and sexual precedence conditions) influenced cognitive appraisals and sexual outcomes in a hypothetical sexual scenario.

How Do Alcohol and Relationship Type Affect Women's Risk Judgment of Partners with Differing Risk Histories?

Understanding how women judge male partners' sexual risk is important to developing risk reduction programs. Applying a cognitive mediation model of sexual decision making, our study investigated effects of alcohol consumption (control, low dose, high dose) and relationship type (disrupted vs. new) on women's risk judgments of a male sexual partner in three sexual risk conditions (low, unknown, high).

Patterns of alcohol use and expectancies predict sexual risk taking among non-problem drinking women.

Objective: Although alcohol consumption and sexual risk taking are associated, not everyone who drinks alcohol engages in risky sexual behavior. The purposes of the present study were to identify patterns of alcohol use behaviors and alcohol expectancies among women who are non-problem drinkers and to examine how these patterns are associated with indices of sexual risk.

Method: Data from 758 non-problem drinking women who have sex with men and were not in committed relationships were analyzed using latent profile analysis to determine patterns of alcohol use and alcohol-related expectancies.

Effects of relationship motivation, partner familiarity, and alcohol on women's risky sexual decision making.

This experiment examined the effects of women's relationship motivation, partner familiarity, and alcohol consumption on sexual decision making. Women completed an individual difference measure of relationship motivation and then were randomly assigned to partner familiarity condition (low, high) and to alcohol consumption condition (high dose, low dose, no alcohol, placebo). Then women read and projected themselves into a scenario of a sexual encounter.

Influences of sexual sensation seeking, alcohol consumption, and sexual arousal on women's behavioral intentions related to having unprotected sex.

This experimental study examined effects of alcohol consumption and sexual sensation seeking on unprotected sex intentions, taking into account sexual arousal, indirectly discouraging sex, and condom insistence. Women (N = 173; mean age = 25.02) were randomly assigned to a control, placebo, low-dose beverage (target blood alcohol level = .