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.) | 2007.43 (1.77) | 2007.46 (1.79) | 2007.36 (1.73) | |||
| 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 | 0 | 0.00% | 0 | 0.00% | 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 | 6 | 0.25% | 5 | 0.30% | 1 | 0.14% |
| 2003 | 22 | 0.91% | 15 | 0.89% | 7 | 0.96% |
| 2004 | 74 | 3.06% | 62 | 3.67% | 12 | 1.65% |
| 2005 | 224 | 9.25% | 155 | 9.17% | 69 | 9.50% |
| 2006 | 451 | 18.62% | 294 | 17.39% | 155 | 21.35% |
| 2007 | 479 | 19.78% | 307 | 18.15% | 172 | 23.69% |
| 2008 | 495 | 20.44% | 367 | 21.70% | 128 | 17.63% |
| 2009 | 307 | 12.68% | 230 | 13.60% | 76 | 10.47% |
| 2010 | 285 | 11.77% | 206 | 12.18% | 78 | 10.74% |
| 2011 | 79 | 3.26% | 50 | 2.96% | 28 | 3.86% |
| Missing |
3
(0.12%) |
– |
1
(0.06%) |
– |
2
(0.27%) |
– |
| Total | 2425 | 100% | 1692 | 100% | 728 | 100% |
| dates (year or date__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.27 (1.80) | 2007.27 (1.82) | 2007.24 (1.76) | |||
| 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% | 1 | 0.06% | 0 | 0.00% |
| 2000 | 2 | 0.08% | 2 | 0.11% | 0 | 0.00% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 6 | 0.23% | 5 | 0.28% | 1 | 0.13% |
| 2003 | 33 | 1.29% | 22 | 1.25% | 11 | 1.39% |
| 2004 | 98 | 3.82% | 73 | 4.13% | 25 | 3.16% |
| 2005 | 282 | 11.00% | 201 | 11.38% | 81 | 10.23% |
| 2006 | 485 | 18.92% | 314 | 17.78% | 169 | 21.34% |
| 2007 | 481 | 18.77% | 307 | 17.38% | 174 | 21.97% |
| 2008 | 519 | 20.25% | 381 | 21.57% | 138 | 17.42% |
| 2009 | 333 | 12.99% | 241 | 13.65% | 92 | 11.62% |
| 2010 | 262 | 10.22% | 184 | 10.42% | 77 | 9.72% |
| 2011 | 61 | 2.38% | 35 | 1.98% | 24 | 3.03% |
| Missing |
9
(0.35%) |
– |
7
(0.39%) |
– |
2
(0.25%) |
– |
| Total | 2572 | 100% | 1773 | 100% | 794 | 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.