TY - JOUR
T1 - Predicting university undergraduates' binge-drinking behavior
T2 - a comparative test of the one- and two-component theories of planned behavior
AU - Elliott, Mark
AU - Ainsworth, Kirsty
PY - 2012/1
Y1 - 2012/1
N2 - This study provides a comparative test of the one- and two-component theories of planned behavior (TPB) in the context of university undergraduates’ binge-drinking. Participants (N=120) self-completed questionnaire measures of all TPB constructs at time 1 and subsequent binge-drinking at time 2 (two-weeks later). The data were analyzed using a combination of path analyses and bootstrapping procedures. Both models accounted for a substantial proportion of the variation in behavior. However, the two-component TPB provided a significantly better fit to the data, with the total direct and indirect effects accounting for 90% of the variance. Intention was the only direct predictor of behavior. Instrumental attitude, affective attitude and self-efficacy had indirect effects. Although health interventions could usefully target these cognitive antecedents, simulation analyses, modelling the effects of cognition change on behavior, showed that only large- (0.8 SD) sized changes to affective attitude, or moderate-sized changes to all of these cognitions in combination were sufficient to reduce binge-drinking.
AB - This study provides a comparative test of the one- and two-component theories of planned behavior (TPB) in the context of university undergraduates’ binge-drinking. Participants (N=120) self-completed questionnaire measures of all TPB constructs at time 1 and subsequent binge-drinking at time 2 (two-weeks later). The data were analyzed using a combination of path analyses and bootstrapping procedures. Both models accounted for a substantial proportion of the variation in behavior. However, the two-component TPB provided a significantly better fit to the data, with the total direct and indirect effects accounting for 90% of the variance. Intention was the only direct predictor of behavior. Instrumental attitude, affective attitude and self-efficacy had indirect effects. Although health interventions could usefully target these cognitive antecedents, simulation analyses, modelling the effects of cognition change on behavior, showed that only large- (0.8 SD) sized changes to affective attitude, or moderate-sized changes to all of these cognitions in combination were sufficient to reduce binge-drinking.
KW - university students
KW - cognition and behavior change
KW - binge-drinking
KW - two-component theory of planned behavior
UR - http://www.scopus.com/inward/record.url?scp=80054765869&partnerID=8YFLogxK
UR - http://www.sciencedirect.com/science/article/pii/S0306460311002899
U2 - 10.1016/j.addbeh.2011.09.005
DO - 10.1016/j.addbeh.2011.09.005
M3 - Article
SN - 0306-4603
VL - 37
SP - 92
EP - 101
JO - Addictive Behaviors
JF - Addictive Behaviors
IS - 1
ER -
