signature.day

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 Rs Female Male

Mean (Std. Dev.) 14.40 (8.63) 14.74 (8.56) 13.65 (8.75)

0 0 0.00% 0 0.00% 0 0.00%

1 179 5.46% 124 5.41% 55 5.60%

2 162 4.94% 97 4.23% 63 6.42%

3 111 3.38% 71 3.10% 40 4.07%

4 122 3.72% 81 3.53% 41 4.18%

5 101 3.08% 71 3.10% 30 3.05%

6 70 2.13% 46 2.01% 24 2.44%

7 101 3.08% 66 2.88% 33 3.36%

8 117 3.57% 79 3.45% 38 3.87%

9 201 6.13% 132 5.76% 67 6.82%

10 100 3.05% 68 2.97% 32 3.26%

11 95 2.90% 55 2.40% 40 4.07%

12 99 3.02% 65 2.84% 34 3.46%

13 93 2.83% 75 3.27% 18 1.83%

14 97 2.96% 75 3.27% 22 2.24%

15 119 3.63% 84 3.66% 35 3.56%

16 90 2.74% 56 2.44% 34 3.46%

17 105 3.20% 85 3.71% 20 2.04%

18 137 4.18% 108 4.71% 29 2.95%

19 185 5.64% 145 6.33% 40 4.07%

20 121 3.69% 81 3.53% 40 4.07%

21 101 3.08% 74 3.23% 27 2.75%

22 87 2.65% 64 2.79% 23 2.34%

23 83 2.53% 58 2.53% 24 2.44%

24 71 2.16% 47 2.05% 24 2.44%

25 96 2.93% 75 3.27% 21 2.14%

26 97 2.96% 67 2.92% 30 3.05%

27 85 2.59% 57 2.49% 28 2.85%

28 87 2.65% 68 2.97% 19 1.93%

29 60 1.83% 36 1.57% 24 2.44%

30 90 2.74% 69 3.01% 21 2.14%

31 19 0.58% 13 0.57% 6 0.61%

Missing 76
(2.26%) – 53
(2.26%) – 23
(2.29%) –

Total 3357 100% 2345 100% 1005 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.

students (signature_day)
	All Rs		Female		Male
Mean (Std. Dev.)	14.40 (8.63)		14.74 (8.56)		13.65 (8.75)
0	0	0.00%	0	0.00%	0	0.00%
1	179	5.46%	124	5.41%	55	5.60%
2	162	4.94%	97	4.23%	63	6.42%
3	111	3.38%	71	3.10%	40	4.07%
4	122	3.72%	81	3.53%	41	4.18%
5	101	3.08%	71	3.10%	30	3.05%
6	70	2.13%	46	2.01%	24	2.44%
7	101	3.08%	66	2.88%	33	3.36%
8	117	3.57%	79	3.45%	38	3.87%
9	201	6.13%	132	5.76%	67	6.82%
10	100	3.05%	68	2.97%	32	3.26%
11	95	2.90%	55	2.40%	40	4.07%
12	99	3.02%	65	2.84%	34	3.46%
13	93	2.83%	75	3.27%	18	1.83%
14	97	2.96%	75	3.27%	22	2.24%
15	119	3.63%	84	3.66%	35	3.56%
16	90	2.74%	56	2.44%	34	3.46%
17	105	3.20%	85	3.71%	20	2.04%
18	137	4.18%	108	4.71%	29	2.95%
19	185	5.64%	145	6.33%	40	4.07%
20	121	3.69%	81	3.53%	40	4.07%
21	101	3.08%	74	3.23%	27	2.75%
22	87	2.65%	64	2.79%	23	2.34%
23	83	2.53%	58	2.53%	24	2.44%
24	71	2.16%	47	2.05%	24	2.44%
25	96	2.93%	75	3.27%	21	2.14%
26	97	2.96%	67	2.92%	30	3.05%
27	85	2.59%	57	2.49%	28	2.85%
28	87	2.65%	68	2.97%	19	1.93%
29	60	1.83%	36	1.57%	24	2.44%
30	90	2.74%	69	3.01%	21	2.14%
31	19	0.58%	13	0.57%	6	0.61%
Missing	76 (2.26%)	–	53 (2.26%)	–	23 (2.29%)	–
Total	3357	100%	2345	100%	1005	100%