Variable | Total | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | X10 |
---|---|---|---|---|---|---|---|---|---|---|---|
N | 504 | 15 | 30 | 62 | 47 | 13 | 34 | 119 | 104 | 54 | 26 |
Age (M, SD) | 12.9 (.9) | 12.0 (.5) | 11.3 (.4) | 12.9 (.4) | 12.9 (.3) | 11.9 (.5) | 12.3 (.5) | 13.5 (.6) | 12.6 (.7) | 13.9 (.5) | 12.7 (.5) |
Year group (range) | 7–9 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 8 | 9 | 8 |
Gender (% female) | 55.2 | 40.0 | 50.0 | 100.0 | 100.0 | 100.0 | 47.1 | 0.0 | 100.0 | 0.0 | 57.7 |
Ethnicity (% Caucasian) | 78.9 | 93.3 | 86.7 | 72.6 | 80.8 | 69.5 | 61.1 | 89.1 | 71.1 | 83.4 | 96.1 |
Mother’s education level (M, SD) | 3.6 (1.3) | 3.9 (1.4) | 2.9 (1.4) | 3.6 (1.1) | 2.9 (1.4) | 4.1 (1.4) | 2.4 (1.1) | 4.2 (1.1) | 3.9 (1.0) | 3.5 (1.5) | 3.0 (1.2) |