By Column: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
Alphabetically: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
age (in Demographics)
| 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) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 20.40 (0.54) | 20.37 (0.54) | 20.45 (0.51) | |||
| 18 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 
| 19 | 45 | 2.40% | 40 | 3.17% | 5 | 0.82% | 
| 20 | 1045 | 55.64% | 719 | 56.97% | 324 | 52.94% | 
| 21 | 788 | 41.96% | 503 | 39.86% | 283 | 46.24% | 
| 22 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 
| 23 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 
| 24 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 
| 25 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% | 
| Missing | 
0
 (0.00%)  | 
– | 
0
 (0.00%)  | 
– | 
0
 (0.00%)  | 
– | 
| 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.