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 738 13.66% 720 19.20% 17 1.04%

10 or younger 663 12.27% 486 12.96% 174 10.62%

11 343 6.35% 147 3.92% 195 11.90%

12 639 11.82% 251 6.69% 386 23.57%

13 699 12.93% 315 8.40% 378 23.08%

14 596 11.03% 334 8.91% 261 15.93%

15 504 9.33% 357 9.52% 146 8.91%

16 392 7.25% 342 9.12% 49 2.99%

17 317 5.87% 306 8.16% 11 0.67%

18 250 4.63% 241 6.43% 9 0.55%

19 143 2.65% 139 3.71% 4 0.24%

20 84 1.55% 82 2.19% 2 0.12%

21 29 0.54% 26 0.69% 3 0.18%

22 7 0.13% 4 0.11% 3 0.18%

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

Missing 3163
(36.92%) – 2072
(35.59%) – 1088
(39.91%) –

Total 8567 100% 5822 100% 2726 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	738	13.66%	720	19.20%	17	1.04%
10 or younger	663	12.27%	486	12.96%	174	10.62%
11	343	6.35%	147	3.92%	195	11.90%
12	639	11.82%	251	6.69%	386	23.57%
13	699	12.93%	315	8.40%	378	23.08%
14	596	11.03%	334	8.91%	261	15.93%
15	504	9.33%	357	9.52%	146	8.91%
16	392	7.25%	342	9.12%	49	2.99%
17	317	5.87%	306	8.16%	11	0.67%
18	250	4.63%	241	6.43%	9	0.55%
19	143	2.65%	139	3.71%	4	0.24%
20	84	1.55%	82	2.19%	2	0.12%
21	29	0.54%	26	0.69%	3	0.18%
22	7	0.13%	4	0.11%	3	0.18%
23 or older	0	0.00%	0	0.00%	0	0.00%
Missing	3163 (36.92%)	–	2072 (35.59%)	–	1088 (39.91%)	–
Total	8567	100%	5822	100%	2726	100%