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 140 10.86% 136 15.16% 4 1.03%

10 or younger 168 13.03% 117 13.04% 50 12.89%

11 85 6.59% 46 5.13% 39 10.05%

12 156 12.10% 65 7.25% 90 23.20%

13 153 11.87% 58 6.47% 94 24.23%

14 141 10.94% 81 9.03% 59 15.21%

15 123 9.54% 86 9.59% 37 9.54%

16 102 7.91% 93 10.37% 9 2.32%

17 63 4.89% 60 6.69% 3 0.77%

18 62 4.81% 59 6.58% 3 0.77%

19 59 4.58% 59 6.58% 0 0.00%

20 36 2.79% 36 4.01% 0 0.00%

21 1 0.08% 1 0.11% 0 0.00%

22 0 0.00% 0 0.00% 0 0.00%

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

Missing 589
(31.36%) – 365
(28.92%) – 224
(36.60%) –

Total 1878 100% 1262 100% 612 100%

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	140	10.86%	136	15.16%	4	1.03%
10 or younger	168	13.03%	117	13.04%	50	12.89%
11	85	6.59%	46	5.13%	39	10.05%
12	156	12.10%	65	7.25%	90	23.20%
13	153	11.87%	58	6.47%	94	24.23%
14	141	10.94%	81	9.03%	59	15.21%
15	123	9.54%	86	9.59%	37	9.54%
16	102	7.91%	93	10.37%	9	2.32%
17	63	4.89%	60	6.69%	3	0.77%
18	62	4.81%	59	6.58%	3	0.77%
19	59	4.58%	59	6.58%	0	0.00%
20	36	2.79%	36	4.01%	0	0.00%
21	1	0.08%	1	0.11%	0	0.00%
22	0	0.00%	0	0.00%	0	0.00%
23 or older	0	0.00%	0	0.00%	0	0.00%
Missing	589 (31.36%)	–	365 (28.92%)	–	224 (36.60%)	–
Total	1878	100%	1262	100%	612	100%