age.at.first.masturbation

age.at.first.masturbation (in Sexual History)

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 (age_at_first_masturbation)

All Rs Female Male

I have never masturbated 235 12.18% 226 16.35% 9 1.66%

10 or younger 226 11.72% 164 11.87% 61 11.23%

11 119 6.17% 66 4.78% 53 9.76%

12 207 10.73% 88 6.37% 118 21.73%

13 209 10.83% 89 6.44% 120 22.10%

14 215 11.15% 124 8.97% 89 16.39%

15 193 10.01% 134 9.70% 59 10.87%

16 171 8.86% 151 10.93% 20 3.68%

17 103 5.34% 97 7.02% 6 1.10%

18 104 5.39% 97 7.02% 7 1.29%

19 90 4.67% 90 6.51% 0 0.00%

20 53 2.75% 53 3.84% 0 0.00%

21 3 0.16% 3 0.22% 0 0.00%

22 1 0.05% 0 0.00% 1 0.18%

23 or older 0 0.00% 0 0.00% 0 0.00%

Missing 869
(31.06%) – 562
(28.91%) – 306
(36.04%) –

Total 2798 100% 1944 100% 849 100%

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 (age_at_first_masturbation)
	All Rs		Female		Male
I have never masturbated	235	12.18%	226	16.35%	9	1.66%
10 or younger	226	11.72%	164	11.87%	61	11.23%
11	119	6.17%	66	4.78%	53	9.76%
12	207	10.73%	88	6.37%	118	21.73%
13	209	10.83%	89	6.44%	120	22.10%
14	215	11.15%	124	8.97%	89	16.39%
15	193	10.01%	134	9.70%	59	10.87%
16	171	8.86%	151	10.93%	20	3.68%
17	103	5.34%	97	7.02%	6	1.10%
18	104	5.39%	97	7.02%	7	1.29%
19	90	4.67%	90	6.51%	0	0.00%
20	53	2.75%	53	3.84%	0	0.00%
21	3	0.16%	3	0.22%	0	0.00%
22	1	0.05%	0	0.00%	1	0.18%
23 or older	0	0.00%	0	0.00%	0	0.00%
Missing	869 (31.06%)	–	562 (28.91%)	–	306 (36.04%)	–
Total	2798	100%	1944	100%	849	100%