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 1361 15.93% 1324 21.57% 35 1.47%

10 or younger 967 11.32% 724 11.80% 239 10.01%

11 479 5.61% 219 3.57% 259 10.85%

12 885 10.36% 363 5.91% 519 21.74%

13 1073 12.56% 488 7.95% 580 24.30%

14 905 10.59% 512 8.34% 391 16.38%

15 785 9.19% 563 9.17% 221 9.26%

16 704 8.24% 613 9.99% 90 3.77%

17 528 6.18% 509 8.29% 18 0.75%

18 448 5.24% 431 7.02% 17 0.71%

19 225 2.63% 220 3.58% 5 0.21%

20 128 1.50% 125 2.04% 3 0.13%

21 44 0.51% 39 0.64% 5 0.21%

22 11 0.13% 6 0.10% 5 0.21%

23 or older 1 0.01% 1 0.02% 0 0.00%

Missing 4828
(36.11%) – 3310
(35.04%) – 1508
(38.72%) –

Total 13372 100% 9447 100% 3895 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	1361	15.93%	1324	21.57%	35	1.47%
10 or younger	967	11.32%	724	11.80%	239	10.01%
11	479	5.61%	219	3.57%	259	10.85%
12	885	10.36%	363	5.91%	519	21.74%
13	1073	12.56%	488	7.95%	580	24.30%
14	905	10.59%	512	8.34%	391	16.38%
15	785	9.19%	563	9.17%	221	9.26%
16	704	8.24%	613	9.99%	90	3.77%
17	528	6.18%	509	8.29%	18	0.75%
18	448	5.24%	431	7.02%	17	0.71%
19	225	2.63%	220	3.58%	5	0.21%
20	128	1.50%	125	2.04%	3	0.13%
21	44	0.51%	39	0.64%	5	0.21%
22	11	0.13%	6	0.10%	5	0.21%
23 or older	1	0.01%	1	0.02%	0	0.00%
Missing	4828 (36.11%)	–	3310 (35.04%)	–	1508 (38.72%)	–
Total	13372	100%	9447	100%	3895	100%