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 748 21.22% 713 29.25% 34 3.17%

10 or younger 366 10.38% 256 10.50% 107 9.96%

11 153 4.34% 64 2.63% 87 8.10%

12 330 9.36% 128 5.25% 200 18.62%

13 465 13.19% 200 8.20% 262 24.39%

14 350 9.93% 166 6.81% 184 17.13%

15 303 8.60% 200 8.20% 102 9.50%

16 290 8.23% 229 9.39% 60 5.59%

17 208 5.90% 193 7.92% 15 1.40%

18 191 5.42% 181 7.42% 10 0.93%

19 99 2.81% 94 3.86% 5 0.47%

20 15 0.43% 13 0.53% 2 0.19%

21 3 0.09% 0 0.00% 3 0.28%

22 2 0.06% 0 0.00% 2 0.19%

23 or older 2 0.06% 1 0.04% 1 0.09%

Missing 1710
(32.66%) – 1135
(31.77%) – 570
(34.67%) –

Total 5235 100% 3573 100% 1644 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	748	21.22%	713	29.25%	34	3.17%
10 or younger	366	10.38%	256	10.50%	107	9.96%
11	153	4.34%	64	2.63%	87	8.10%
12	330	9.36%	128	5.25%	200	18.62%
13	465	13.19%	200	8.20%	262	24.39%
14	350	9.93%	166	6.81%	184	17.13%
15	303	8.60%	200	8.20%	102	9.50%
16	290	8.23%	229	9.39%	60	5.59%
17	208	5.90%	193	7.92%	15	1.40%
18	191	5.42%	181	7.42%	10	0.93%
19	99	2.81%	94	3.86%	5	0.47%
20	15	0.43%	13	0.53%	2	0.19%
21	3	0.09%	0	0.00%	3	0.28%
22	2	0.06%	0	0.00%	2	0.19%
23 or older	2	0.06%	1	0.04%	1	0.09%
Missing	1710 (32.66%)	–	1135 (31.77%)	–	570 (34.67%)	–
Total	5235	100%	3573	100%	1644	100%