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physattr (in Demographics)

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

students (physattr)
 All RsFemaleMale
Mean (Std. Dev.) 7.19 (1.39) 7.13 (1.39) 7.34 (1.38)
1 14 0.30% 11 0.32% 3 0.23%
2 14 0.30% 12 0.35% 2 0.15%
3 57 1.21% 42 1.23% 15 1.15%
4 88 1.86% 71 2.08% 17 1.30%
5 347 7.35% 273 8.00% 74 5.67%
6 581 12.30% 418 12.25% 163 12.49%
7 1572 33.28% 1143 33.50% 426 32.64%
8 1476 31.25% 1078 31.59% 397 30.42%
9 372 7.88% 245 7.18% 127 9.73%
10 202 4.28% 119 3.49% 81 6.21%
Missing 13
(0.27%)
8
(0.23%)
5
(0.38%)
Total 4736 100% 3420 100% 1310 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.