with.this.significant.other.ever..you.performed.oral.sex

with.this.significant.other.ever..you.performed.oral.sex (in Relationships)

Variable Summary	Undergrad	Freshman	Sophomore	Junior	Senior
Sexually active students:	Undergrad	Freshman	Sophomore	Junior	Senior
Casual-sexually active students:	Undergrad	Freshman	Sophomore	Junior	Senior

Which sexual activities did you engage in at any time during your relationship?

This variable, with.this.significant.other.ever..you.performed.oral.sex, is used in the construction of the variable, with.this.significant.other.ever..oral.sex.occurred.

romances (w_t_s_o_e__y_p_o_s or r__w_t_s_o_e__y_p_o_s)

All Rs Female Male

Mean (Std. Dev.) 0.83 (0.37) 0.85 (0.36) 0.80 (0.40)

0 2034 16.55% 1386 15.43% 636 19.51%

1 10258 83.45% 7599 84.57% 2624 80.49%

Missing 0
(0.00%) – 0
(0.00%) – 0
(0.00%) –

Total 12292 100% 8985 100% 3260 100%

Negative (no/false) Positive (yes/true)

1782, 1604, 1624, 1650, 266
491, 539, 606, 576, 143

Negative (no/false) Positive (yes/true)

1224, 1023, 1074, 1077, 166
375, 357, 408, 383, 93

These graphs reflect only undergraduates attending 4-year colleges who are of normative age -- 18, 19, 20, 21, or 22, +/- 1, for freshman, sophomores, juniors, seniors, and later undergraduates, respectively. Solid lines represent women. Dotted lines represent men.

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romances (w_t_s_o_e__y_p_o_s or r__w_t_s_o_e__y_p_o_s)
	All Rs		Female		Male
Mean (Std. Dev.)	0.83 (0.37)		0.85 (0.36)		0.80 (0.40)
0	2034	16.55%	1386	15.43%	636	19.51%
1	10258	83.45%	7599	84.57%	2624	80.49%
Missing	0 (0.00%)	–	0 (0.00%)	–	0 (0.00%)	–
Total	12292	100%	8985	100%	3260	100%