Table 1.

Summary statistics for incapacitated rape (IR) and its predictors for the entire sample and separately among participants with and without a history of IR

	Entire sample (N = 483)		No IR history (n = 388)		IR history (n = 91)
Variable	M or %	SD	M or %	SD	M or %	SD	Significance test
IR during study year, %	15%		10%		41%		χ2(1) = 46.54***
Heavy drinking, precollege
Days	2.15	3.49	1.58	3.07	4.63	4.04	t(477) = 7.98***
Any, % yes	50%		42%		88%		χ2(1) = 56.10***
Marijuana use, precollege
Days	1.48	4.30	1.04	3.80	3.35	5.62	t(477) = 4.73***
Any, % yes	28%		18%		55%		χ2(1) = 49.05***
Sexual partners, precollege
Total number	1.39	2.39	0.98	1.67	3.16	3.82	t(476) = 8.44***
Any, % yes	52%		45%		84%		χ2(1) = 42.38***
Sex-related alcohol expectancies
Total score	2.75	1.11	2.67	1.12	3.04	1.04	t(320) = 2.60**
Enhancement	3.12	1.31	2.93	1.28	3.72	1.21	t(320) = 4.83**
Sexual risk taking	2.39	1.37	2.44	1.38	2.25	1.32	t(320) = 1.07
Disinhibition	2.77	1.34	2.64	1.33	3.15	1.31	t(319) = 2.96**

Note: The study year was from the start of college (September) for one calendar year (i.e., to August 31 of the following year).

^**p < .01;

^***p < .001.