Dana M. Litt

Adolescent alcohol-related risk cognitions: The roles of social norms and social networking sites

The present study examined the impact of socially based descriptive norms on willingness to drink alcohol, drinker prototype favorability, affective alcohol attitudes, and perceived vulnerability for alcohol-related consequences within the Prototype Willingness model. Descriptive norms were manipulated by having 189 young adolescents view experimenter-created profile pages from the social networking site Facebook, which either showed older peers drinking or not. The results provided evidence that descriptive norms for alcohol use, as portrayed by Facebook profiles, significantly impact willingness to use, prototypes, attitudes toward use, and perceived vulnerability. A multiple mediation analysis indicated that prototypes, attitudes, and perceptions of use mediated the relationship between the content of the Facebook profile and willingness. These results indicate that adolescents who perceive that alcohol use is normative, as evidenced by Facebook profiles, are at higher risk for cognitions shown to predict alcohol use than adolescents who do not see alcohol use portrayed as frequently on Facebook.

Underestimating protection and overestimating risk: examining descriptive normative perceptions and their association with drinking and sexual behaviors

Individuals who engage in risky sexual behavior face the possibility of experiencing negative consequences. One tenet of social learning theory is that individuals engage in behaviors partly based on observations or perceptions of others’ engagement in those behaviors. The present study aimed to document these norms–behavior relationships for both risky and protective sexual behaviors, including alcohol-related sexual behavior. Gender was also examined as a possible moderator of the norms–behavior relationship. Undergraduate students (n = 759; 58.0% female) completed a Web-based survey, including various measures of drinking and sexual behavior. Results indicated that students underestimate sexual health-protective behaviors (e.g., condom use and birth control use) and overestimate the risky behaviors (e.g., frequency of drinking prior to sex, typical number of drinks prior to sex, and frequency of casual sex) of their same-sex peers. All norms were positively associated with behavior, with the exception of condom use. Furthermore, no gender differences were found when examining the relationship between normative perceptions and behavior. The present study adds to the existing literature on normative misperceptions as it indicates that college students overestimate risky sexual behavior while underestimating sexual health-protective behaviors. Implications for interventions using the social norm approach and future directions are discussed.

A longitudinal investigation of the Drive for Muscularity Scale: predicting use of performance enhancing substances and weightlifting among males.

The present study was designed to examine the predictive validity of the Drive for Muscularity Scale (DMS; McCreary & Sasse, 2000). The drive for muscularity scale (DMS) is comprised of two subscales: a muscularity-oriented body image (MBI) subscale and a muscularity behavior (MB) subscale. The present study tested whether these subscales predicted two behavioral outcomes in the context of a longitudinal design: use of performance enhancing substances (PES) and weightlifting behavior. One hundred and sixty-one male undergraduates completed a questionnaire that assessed the drive for muscularity, PES use and weightlifting behavior at Time 1 and again 6 weeks later. Results indicated that the MB subscale at Time 1 significantly predicted both changes in PES use and weightlifting behavior controlling for past substance use and past weightlifting behavior. The MBI subscale failed to predict either changes in PES use or weightlifting behavior. Implications and directions for future research are discussed.

Randomized controlled trial of a web-delivered personalized normative feedback intervention to reduce alcohol-related risky sexual behavior among college students

OBJECTIVE The purpose of this study was to evaluate the efficacy of personalized normative feedback (PNF) on college student alcohol-related risky sexual behavior (RSB). METHOD In a randomized controlled trial, 480 (57.6% female) sexually active college students were stratified by gender and level of drinking and randomly assigned to an alcohol-only intervention, an alcohol-related RSB-only intervention, a combined alcohol and alcohol-related RSB intervention, or control. All assessment and intervention procedures were Web-based. RESULTS Results indicated a significant reduction in drinking outcomes for the alcohol only and the combined alcohol and alcohol-related RSB interventions relative to control. Findings further demonstrated a significant reduction in alcohol-related RSB outcomes for the alcohol-related RSB only and the combined alcohol and alcohol-related RSB interventions relative to control. There were no significant intervention effects on alcohol-related negative consequences. These findings demonstrate that the combined alcohol and alcohol-related RSB intervention was the only intervention successful at reducing both drinking and alcohol-related RSB outcomes relative to control. There were no significant differences when comparing the combined alcohol and alcohol-related RSB intervention to the alcohol-only intervention or the alcohol-related RSB-only intervention. Finally, results suggested that the intervention effects on high-risk behaviors were mediated by reductions in descriptive normative perceptions. CONCLUSIONS These findings demonstrate that PNF specific to drinking in sexual situations was needed to reduce alcohol-related RSB. Furthermore, this study highlights the potential utility of a brief intervention that can be delivered via the Internet to reduce high-risk drinking and alcohol-related RSB among college students.

Influence of the Dietary Supplement Health and Education Act on Consumer Beliefs About the Safety and Effectiveness of Dietary Supplements

The authors conducted two studies to examine the influence of the U.S. Dietary Supplement Health and Education Act (DSHEA) on consumer beliefs about the safety and effectiveness of dietary supplements. Study 1 manipulated information about Food and Drug Administration (FDA) approval in the context of a dietary supplement designed to improve immune system functioning. Study 2 tested the effect of an educational intervention designed to improve knowledge about the DSHEA. Results of Study 1 highlighted deficits in consumer knowledge about FDA regulation of dietary supplements. Results also showed that information about FDA approval failed to have a statistically significant effect on beliefs about safety or effectiveness of the dietary supplement. Results of Study 2 showed that participants who were educated about the regulation of dietary supplements under the DSHEA rated dietary supplements as less safe and less effective than did participants in the control condition. The authors discuss the implications for consumers in the United States and for public policy.

Drive for Muscularity and Beliefs about Legal Performance Enhancing Substances as Predictors of Current Use and Willingness to Use

Using a sample of college-aged male athletes (n = 56) and nonathletes (n = 43), negative and positive beliefs were tested as mediators of the relationship between Drive for Muscularity (DM) and use of performance enhancing substances (PES). Results showed that the Muscularity Behavior (MB) and Muscularity-oriented Body Image (MBI) subscales of the DM scale differentially predicted PES use. Results also showed that negative and positive beliefs are mediators MB—PES use relationship. Neither the MB nor MBI subscales predicted willingness to use a new performance enhancing drug.

A multisite randomized trial of normative feedback for heavy drinking: Social comparison versus social comparison plus correction of normative misperceptions.

OBJECTIVE Given widespread alcohol misuse among college students, numerous intervention programs have been developed, including personalized normative feedback (PNF). Most research evaluating PNF assumes that presenting ones own perceived norms is necessary to correct normative misperceptions and thereby reduce drinking. Alternatively, simply providing social comparison information showing that one drinks more than others may be sufficient. The present study evaluated the efficacy of full PNF (ones own drinking, campus drinking rates, and perceived norms) and a partial personalized social comparison feedback (PSCF; ones own drinking and campus drinking rates) in a randomized trial among heavy-drinking college students. METHOD Participants included 623 heavy-drinking students from 3 universities. Assessments occurred at baseline and 3- and 6-months postbaseline. RESULTS Primary analyses examined differences across 4 drinking outcomes (drinks per week, total drinks past month, frequency of past month drinking, and negative alcohol-related consequences) at 3- and 6-month follow-ups controlling for the baseline variable. Results revealed significant reductions across all alcohol consumption outcomes at 3 months in both intervention conditions compared to attention-control. Mediation analyses demonstrated significant indirect effects of the intervention on 6-month drinking through changes in perceived norms at 3 months. Moreover, evidence emerged for changes in drinking at 3 months as a mediator of the association between PSCF and 6-month perceived norms. CONCLUSIONS The present research suggests PNF may not require explicit consideration of ones perceived norms to be effective and that direct social comparison provides an alternative theoretical mechanism for PNF efficacy.

Normative Misperceptions of Peer Seat Belt Use Among High School Students and Their Relationship to Personal Seat Belt Use

Objectives: This research examined gender-specific perceptions of peer seat belt use norms among high school students and their relationship with ones own seat belt use. We expected that students would underestimate the seat belt use of their peers and that these perceptions would be positively associated with their own seat belt use. Methods: High school students from 4 schools (N = 3348; 52% male) completed measures assessing perceived seat belt use and personal seat belt use. Results: Findings demonstrated that students perceived that others engaged in less seat belt use than they do and that perceived norms were positively associated with ones own seat belt use. Conclusions: Peer influences are a strong predictor of behavior, especially among adolescents. Ironically, adolescents’ behaviors are often influenced by inaccurate perceptions of their peers. This research establishes the presence of a misperception related to seat belt use and suggests that misperception is associated with own behaviors. This research provides a foundation for social norms–based interventions designed to increase seat belt use by correcting normative misperceptions among adolescents.

Spring Break Versus Spring Broken: Predictive Utility of Spring Break Alcohol Intentions and Willingness at Varying Levels of Extremity

Within the domain of risk-related behavior, many times the decision to engage is not a product of premeditation or intention. The prototype willingness model was created to capture and explain the unintended element of risk behavior. The present study aimed to evaluate the importance of willingness versus intention, two important constructs within the prototype willingness model, in relation to spring break drinking behavior when assessed at both high and low extremities. College undergraduates (N = 275) completed questionnaires prior to spring break regarding their anticipated spring break activities. Willingness and intention were assessed for different levels of risk. Specifically, participants indicated the extent to which they intended to (a) get drunk and (b) drink enough to black out or pass out; and the extent to which they were willing to (a) get drunk and (b) drink enough to black out or pass out. When classes resumed following spring break, the students indicated the extent to which they actually (a) got drunk and (b) drank enough to black out or pass out. Results demonstrated that when the health-related risk was lower (i.e., getting drunk), intention was a stronger predictor of behavior than was willingness. However, as the level of risk increased (i.e., getting drunk enough to black out or pass out), willingness more strongly predicted behavior. The present study suggests that willingness and intentions differentially predict spring break alcohol-related behavior depending on the extremity of behavior in question. Implications regarding alcohol interventions are discussed.

Drinking to Fit in: Examining the Need to Belong as a Moderator of Perceptions of Best Friends’ Alcohol Use and Related Risk Cognitions Among College Students

The primary objective of the present study was to examine whether the need to belong moderates the relation between perceived descriptive norms for best friend alcohol use and alcohol-related cognitions outlined in the Prototype Willingness model (i.e., willingness, attitudes, and prototype favorability) among college students. Three hundred forty-six college students (197 female) completed the survey. Regression results indicated that the effect of perceptions of best friend alcohol use on risk cognitions was stronger among students reporting a greater need to belong. The findings suggest that interventions utilizing descriptive norms may be more efficacious among those higher in a need to belong.