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signature.day (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 (signature_day)
 All RsFemaleMale
Mean (Std. Dev.) 14.42 (8.65) 14.88 (8.56) 13.39 (8.73)
0 0 0.00% 0 0.00% 0 0.00%
1 190 5.02% 127 4.92% 63 5.28%
2 161 4.25% 93 3.60% 67 5.61%
3 190 5.02% 111 4.30% 79 6.62%
4 154 4.07% 87 3.37% 67 5.61%
5 120 3.17% 80 3.10% 40 3.35%
6 78 2.06% 55 2.13% 22 1.84%
7 113 2.99% 72 2.79% 41 3.43%
8 139 3.67% 103 3.99% 36 3.02%
9 173 4.57% 117 4.53% 56 4.69%
10 119 3.14% 79 3.06% 40 3.35%
11 98 2.59% 56 2.17% 42 3.52%
12 99 2.62% 67 2.59% 32 2.68%
13 121 3.20% 80 3.10% 41 3.43%
14 128 3.38% 86 3.33% 42 3.52%
15 126 3.33% 86 3.33% 40 3.35%
16 126 3.33% 78 3.02% 48 4.02%
17 150 3.96% 115 4.45% 35 2.93%
18 126 3.33% 100 3.87% 26 2.18%
19 209 5.52% 160 6.20% 48 4.02%
20 151 3.99% 110 4.26% 40 3.35%
21 125 3.30% 89 3.45% 36 3.02%
22 113 2.99% 82 3.18% 30 2.51%
23 90 2.38% 63 2.44% 27 2.26%
24 74 1.96% 57 2.21% 16 1.34%
25 93 2.46% 68 2.63% 25 2.09%
26 119 3.14% 79 3.06% 39 3.27%
27 108 2.85% 75 2.90% 32 2.68%
28 94 2.48% 68 2.63% 26 2.18%
29 75 1.98% 46 1.78% 28 2.35%
30 98 2.59% 73 2.83% 25 2.09%
31 25 0.66% 20 0.77% 5 0.42%
Missing 83
(2.15%)
48
(1.83%)
35
(2.85%)
Total 3868 100% 2630 100% 1229 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.