Table 1.
Demographic Characteristics of Study Participants and their Schools
| Variable | N | % | M | SD |
|---|---|---|---|---|
| Adolescent and Family Characteristics | ||||
| Gender | 7,731 | |||
| Female | 4,000 | 51.7 | ||
| Male | 3,731 | 48.3 | ||
| Race/ethnicity | 7,731 | |||
| White | 4,245 | 54.8 | ||
| African American | 1,639 | 21.2 | ||
| Latino American | 1,245 | 16.1 | ||
| Asian American | 602 | 7.8 | ||
| Age | 7,709 | 14.70 | 1.50 | |
| Repeat Grade | 7,725 | |||
| Yes | 1,310 | 17.0 | ||
| No | 6,415 | 83.0 | ||
| Picture Vocabulary Test scores | 7,390 | 101.24 | 14.66 | |
| Generational status | 7,731 | |||
| Both parents born in U.S. | 5,978 | 77.3 | ||
| At least one parent foreign-born | 1,753 | 22.7 | ||
| Intact family (living with both biological parents) | 7,731 | |||
| living with both biological parents | 4,401 | 56.9 | ||
| living with one or none biological parents | 3,330 | 43.1 | ||
| Parent education | 7,427 | 2.89 | 1.06 | |
| Parent alcohol use | 6,822 | 1.95 | 1.15 | |
| Close friends’ alcohol use | 6,423 | 1.09 | .94 | |
| School Characteristics | ||||
| School size | 7,731 | 1206.08 | 819.99 | |
| School sector | 7,731 | |||
| Private | 601 | 7.8 | ||
| Public | 7,130 | 92.2 | ||
| School location | 7,731 | |||
| West | 1,582 | 20.5 | ||
| Midwest | 1,912 | 24.7 | ||
| South | 2,928 | 37.9 | ||
| Northeast | 1,309 | 16.9 | ||
| Urbanicity | 7,731 | |||
| Urban | 2,138 | 27.7 | ||
| Suburban | 4,069 | 52.6 | ||
| Rural | 1,524 | 19.7 | ||
| Grade span | 7,731 | |||
| Middle school | 1,195 | 15.5 | ||
| High school | 4,256 | 55.1 | ||
| Mixed school | 2,280 | 29.5 | ||
| School racial diversity | 7,731 | .45 | .20 | |
| Schoolwide alcohol use | 7,731 | 1.16 | .36 | |