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  • Title: Between- and Within-Person Correlates of Alcohol-Impaired Driving in First-Year University Students: The Roles of Impulsivity, Binge Drinking, Depression, and Anxiety.
    Author: Robillard CL, Legg NK, Turner BJ.
    Journal: J Stud Alcohol Drugs; 2023 Jan; 84(1):147-157. PubMed ID: 36799685.
    Abstract:
    OBJECTIVE: University students are a high-risk demographic for alcohol-impaired driving (AID), a leading contributor to death and injury on Canadian roads. Although between-person correlates of AID are well established, little research has identified within-person correlates that elucidate when AID occurs. Accordingly, this study investigated whether between- and within-person variability in impulsivity, binge drinking, depression, and anxiety are associated with AID in university students. METHOD: Participants were 633 first-year students (75% female, mean age = 17.97 [SD = 0.76]) from a Canadian university who completed seven monthly surveys. Multilevel models disaggregated between- and within-person associations. RESULTS: Between-person elevations in negative and positive urgency, sensation seeking, lack of premeditation, binge drinking, and depression were associated with greater odds of AID. Within-person elevations in negative urgency, sensation seeking, and binge drinking were associated with greater odds of AID, whereas within-person elevations in depression were associated with lower odds of AID. CONCLUSIONS: These results support existing research regarding who is most likely to engage in AID (students with elevated impulsivity, binge drinking, and depression) and extend this research by identifying under what conditions AID is likeliest to occur (when impulsivity and binge drinking are higher than usual, and depression is lower than usual). The opposing between- and within-person associations of depression with AID highlight the need for careful specification of hypotheses, as findings at the between-person level may not generalize to the within-person level. Moving forward, research that elucidates not only for whom but also when AID occurs may be best positioned to inform intervention and prevention efforts among university students.
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