By Column: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
Alphabetically: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
year
| Variable Summary | Undergrad | Freshman | Sophomore | Junior | Senior |
| Sexually active students: | Undergrad | Freshman | Sophomore | Junior | Senior |
| Casual-sexually active students: | Undergrad | Freshman | Sophomore | Junior | Senior |
| hookups (year or hookup__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.63 (1.69) | 2007.69 (1.72) | 2007.50 (1.61) | |||
| 1981 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1984 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1985 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1986 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1987 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1988 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1990 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1991 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1992 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1993 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1995 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1997 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1998 | 1 | 0.04% | 1 | 0.06% | 0 | 0.00% |
| 1999 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2000 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 1 | 0.04% | 1 | 0.06% | 0 | 0.00% |
| 2003 | 10 | 0.38% | 9 | 0.51% | 1 | 0.12% |
| 2004 | 55 | 2.09% | 41 | 2.30% | 14 | 1.66% |
| 2005 | 208 | 7.91% | 139 | 7.80% | 68 | 8.08% |
| 2006 | 448 | 17.03% | 282 | 15.82% | 166 | 19.71% |
| 2007 | 500 | 19.01% | 302 | 16.95% | 196 | 23.28% |
| 2008 | 568 | 21.60% | 404 | 22.67% | 164 | 19.48% |
| 2009 | 426 | 16.20% | 307 | 17.23% | 117 | 13.90% |
| 2010 | 343 | 13.04% | 246 | 13.80% | 96 | 11.40% |
| 2011 | 70 | 2.66% | 50 | 2.81% | 20 | 2.38% |
| Missing |
3
(0.11%) |
– |
3
(0.17%) |
– |
0
(0.00%) |
– |
| Total | 2633 | 100% | 1785 | 100% | 842 | 100% |
| dates (year or date__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.56 (1.68) | 2007.59 (1.68) | 2007.49 (1.69) | |||
| 1980 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1981 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1982 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1985 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1987 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1989 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1990 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1991 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1992 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1993 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1994 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1995 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1996 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1997 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1998 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1999 | 1 | 0.04% | 0 | 0.00% | 1 | 0.11% |
| 2000 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2001 | 1 | 0.04% | 1 | 0.05% | 0 | 0.00% |
| 2002 | 2 | 0.07% | 2 | 0.11% | 0 | 0.00% |
| 2003 | 18 | 0.66% | 16 | 0.87% | 2 | 0.23% |
| 2004 | 55 | 2.01% | 35 | 1.90% | 20 | 2.25% |
| 2005 | 219 | 8.00% | 150 | 8.14% | 67 | 7.55% |
| 2006 | 457 | 16.70% | 285 | 15.47% | 171 | 19.28% |
| 2007 | 585 | 21.37% | 358 | 19.44% | 226 | 25.48% |
| 2008 | 585 | 21.37% | 433 | 23.51% | 152 | 17.14% |
| 2009 | 404 | 14.76% | 295 | 16.02% | 108 | 12.18% |
| 2010 | 347 | 12.68% | 229 | 12.43% | 116 | 13.08% |
| 2011 | 63 | 2.30% | 38 | 2.06% | 24 | 2.71% |
| Missing |
15
(0.55%) |
– |
10
(0.54%) |
– |
5
(0.56%) |
– |
| Total | 2752 | 100% | 1852 | 100% | 892 | 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.