title: Predicting driving after drinking over time among college students: the emerging role of injunctive normative perceptions.
abstract: OBJECTIVE
  Despite prevention efforts, driving after drinking (DAD) is a prevalent high-risk behavior among college students and is a leading cause of death and injury. Examination of factors predicting future DAD behavior is necessary to develop efficacious targeted interventions to reduce this behavior among college students. The current study evaluated demographic, social cognitive, and behavioral predictors of DAD using longitudinal data.
  
  
  METHODS
  Participants were 655 nonabstaining college students (67.2% female; 60.3% White; Mage = 19.3 years) who completed online surveys at two time points 12 months apart.
  
  
  RESULTS
  Results revealed that participants consistently overestimated their peers' approval (injunctive norms) of DAD. In a three-step hierarchical logistic regression model, injunctive norms, age, and past DAD behavior uniquely contributed to the prediction of this behavior 12 months later. Neither sex nor membership in a sorority or fraternity emerged as significant predictors.
  
  
  CONCLUSIONS
  The findings provide important new insights into the longitudinal predictors of DAD among college students and highlight the need for DAD interventions, particularly among older students.
authors: Department of Psychology, Loyola Marymount University, Los Angeles, CA 90045, USA. jlabrie@lmu.edu
authors: Joseph W
authors: JW
authors: LaBrie
authors: Lucy E
authors: LE
authors: Napper
authors: Tehniat M
authors: TM
authors: Ghaidarov
mesh_terms: D000293:Adolescent; D000428:Alcohol Drinking / Q000453:epidemiology / Q000523:psychology* / Q000639:trends; D001334:Automobile Driving / Q000523:psychology*; D003625:Data Collection / Q000379:methods; D005260:Female; D005544:Forecasting; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010379:Peer Group; D010465:Perception; D012925:Social Conformity; D013334:Students / Q000523:psychology*; D013997:Time Factors; D014495:Universities / Q000639:trends; D055815:Young Adult