Table 1.
Characteristics of 4,718 participating students in Kansas (H1 and H2 analyses only) and Illinois (all analyses)
| Full sample (all participating Kansas and Illinois students), n=4,718 | Subsample for H2 and H3 (Illinois participants who had dated by Spring 9th grade), n=1,279 | |
|---|---|---|
|
| ||
| n (%) | n (%) | |
| Gender | ||
| Female | 2167 (47.9) | 511 (49.9) |
| Male | 2359 (52.1) | 513 (50.1) |
| Sexual orientation identity | ||
| Heterosexual | – | 899 (87.9) |
| Sexual minority | – | 124 (12.1) |
| Race/ethnicity | ||
| White | 426 (24.6) | 189 (24.5) |
| Black or African American | 648 (37.3) | 273 (35.4) |
| Hispanic or Latino/a/x | 429 (24.7) | 215 (27.9) |
| Asian or Asian American | 13 (0.7) | 6 (0.8) |
| Biracial or multiracial | 219 (12.6) | 88 (11.4) |
| Ever dated by spring 7th grade | ||
| No | 799 (26.4) | 146 (18.8) |
| Yes | 2222 (73.6) | 631 (81.2) |
| Ever dated by spring 8th grade | ||
| No | 605 (21.4) | 86 (10.2) |
| Yes | 2217 (78.6) | 755 (89.8) |
| Ever dated by spring 9th grade | ||
| No | – | 0 (0.0) |
| Yes | – | 1024 (100.0) |
| History of physical abuse at baseline | ||
| No | 2630 (81.0) | 600 (84.2) |
| Yes | 617 (19.0) | 113 (15.8) |
| History of sexual abuse at baseline | ||
| No | 2738 (84.7) | 682 (95.9) |
| Yes | 495 (15.3) | 29 (4.1) |
| Had witnessed domestic abuse at baseline | ||
| No | 3086 (95.4) | 612 (86.2) |
| Yes | 149 (4.6) | 98 (13.8) |
| Second Step implementation | ||
| Attended school that implemented Second Step | 2038 (45.0) | 458 (44.7) |
| Attended school that did not implement Second Step | 2488 (55.0) | 566 (55.3) |
Note. Variables assessed only during the high school waves are presented for the dating violence analysis subsample only. Counts do not sum to sample sizes due to wave and item missingness.