Reducing excessive alcohol consumption at university fraternity parties: a cost-effective incentive/reward intervention.

The impact of an incentive/reward intervention on college students' intoxication from alcohol consumption at fraternity parties was explored using a group-randomized trial. Participants included 702 college students (447 men, 225 women) attending fraternity parties in Blacksburg, VA. Six fraternities were randomly assigned to a control or experimental group, and each of these fraternities hosted two parties. The three fraternities in the experimental group hosted a baseline party first and then hosted an intervention party at which those having a blood alcohol concentration (BAC) level below 0.05 were entered in a $100 cash lottery. The three fraternities in the control group hosted two control (non-intervention) parties. For the experimental fraternities, mean BAC levels were significantly lower at the intervention parties (M=0.079) than the baseline parties (M=0.098) and the percentage of party-goers with a BAC below 0.08 was significantly higher at intervention parties (40.1%) than at baseline parties (30.6%). This field study supports the efficacy of differential reinforcement in controlling student intoxication at party settings.

Intervening to decrease alcohol abuse at university parties: differential reinforcement of intoxication level.

This quasi-experimental field study assessed whether an incentive/reward intervention can change the drinking behavior and the subsequent levels of intoxication among college students attending fraternity parties. A total of 356 blood alcohol concentration (BAC) assessments, using hand-held breathalyzers. were obtained at two baseline and at two intervention parties at the same fratenity house. At the intervention parties, the students were informed they could win a cash prize if their BAC was below .05, and they were given nomograms to aid in monitoring their levels of intoxication. Mean BAC and the percentage of partiers with intoxication levels above .05 were significantly lower at the two intervention parties. More than twice as many partygoers were legally intoxicated (i.e., BAC > .08) at the two baseline parties than at the two intervention parties. indicating a clinically significant impact of the incentive/reward intervention. Greek-life students, in particular, were significantly less intoxicated at intervention parties, compared to baseline parties (p < .001).

Do the designated drivers of college students stay sober?

PROBLEM: By numerous accounts, alcohol abuse is considered the number one drug problem facing young people today. Alcohol consumption and its negative consequences, especially those due to drinking and driving, continue to have devastating effects on the college student population. METHOD: This field study examined the blood alcohol concentration (BAC) levels of male and female designated drivers (DD), non-DD, and their respective passengers as they were leaving drinking establishments in a university town. Also investigated were the effects of group size and gender on DD use. RESULTS: A 2 Gender x 2 Driver type (DD vs. non-DD) analysis of variance (ANOVA) for BAC indicated significant main effects for Gender and Driver type, with higher BAC for men and non-DD (p's<.001). A significant Gender x Driver type interaction (p<.05) was primarily due to female DD having lower BAC than male DD. In addition, larger groups were more likely to have a DD. IMPACT ON INDUSTRY: Results indicate that the success of DD programs may be influenced by group size and a DD's gender. While larger groups are more likely to have a DD, students riding home with a male DD may still be at risk for the negative consequences of drunk driving.