did.not.know.partner.at.all

did.not.know.partner.at.all (in Hookups)

Variable Summary	Undergrad	Freshman	Sophomore	Junior	Senior
*Sexually active students:*	Undergrad	Freshman	Sophomore	Junior	Senior
Casual-sexually active students:	Undergrad	Freshman	Sophomore	Junior	Senior

hookups (did_not_know_partner_at_all or h__d_n_k_p_a_a)

All Rs Female Male

Mean (Std. Dev.) 0.13 (0.34) 0.12 (0.32) 0.17 (0.38)

0 2532 86.50% 1787 88.12% 744 82.94%

1 395 13.50% 241 11.88% 153 17.06%

Missing 4
(0.14%) – 1
(0.05%) – 3
(0.33%) –

Total 2931 100% 2029 100% 900 100%

These tables reflect only undergraduates attending 4-year colleges who are of normative age -- 18, 19, 20, 21, or 22, +/- 1, for freshman, sophomores, juniors, and seniors, respectively.

hookups (did_not_know_partner_at_all or h__d_n_k_p_a_a)
	All Rs		Female		Male
Mean (Std. Dev.)	0.13 (0.34)		0.12 (0.32)		0.17 (0.38)
0	2532	86.50%	1787	88.12%	744	82.94%
1	395	13.50%	241	11.88%	153	17.06%
Missing	4 (0.14%)	–	1 (0.05%)	–	3 (0.33%)	–
Total	2931	100%	2029	100%	900	100%