Table 2.

Cross-Sectional Predictors of Prepartying Drinks, Blackouts, and Motives in Study 1

	Preparty Drinks			Preparty Blackouts			Situational Control Motives			Interpersonal Enhancement Motives			Intimate Pursuit Motives			Barriers to Consumption Motives
Predictors	IRR	95% CI	p	IRR	95% CI	p	B	SE	p	B	SE	p	B	SE	p	B	SE	p
Campus (1 vs. 2)	0.76	0.66 – 0.87	<.001	0.80	0.62 – 1.03	.075	−0.27	0.06	<.001	−0.13	0.06	.046	−0.18	0.05	.001	−0.21	0.06	.001
Age	0.88	0.84 – 0.93	<.001	0.96	0.88 – 1.06	.421	−0.10	0.02	<.001	−0.13	0.02	<.001	−0.07	0.02	.001	−0.39	0.02	<.001
Gender (Man vs. Woman)	1.32	1.14 – 1.52	<.001	1.19	0.92 – 1.55	.190	−0.32	0.06	<.001	0.05	0.07	.498	0.45	0.06	<.001	−0.13	0.06	.032
IR (Yes vs. No)	1.73	1.33 – 2.30	<.001	2.80	1.82 – 4.44	<.001	0.16	0.13	.191	0.31	0.13	.016	0.59	0.12	<.001	0.43	0.14	.001
Gender * IR	1.28	0.79 – 2.14	.330	1.28	0.59 – 2.88	.542	0.07	0.22	.741	−0.03	0.23	.883	0.38	0.28	.179	0.03	0.24	.891

Note. Three separate models were estimated: (1) preparty drinks (N = 1,073), (2) preparty blackouts (N = 1,072), and (3) a multivariate model in which all motives (situational control, interpersonal enhancement, intimate pursuit, barriers to consumption) were allowed to covary (N = 1,073). One participant was missing data on age and therefore excluded from the models; another participant was missing data on blackouts. Standardized covariances (i.e., correlations) between prepartying motives ranged from .28 to .50 (all ps < .001). Bolded values are significantly different at p < .05.