Table III.
Alcohol–Marijuana and Alcohol-only Groups, by race, and Peer Variables
| Alcohol Use Only | Alcohol – MJ Use | ||||
|---|---|---|---|---|---|
| Peer Variables | Mean (SD) | N | Mean (SD) | N | F |
| Peer Substance Use | |||||
| White | 0.86 (.75) | 38 | 1.59 (.84) | 38 | 6.63 (by MJ) t |
| Minority | 0.88 (.86) | 26 | 1.03 (.75) | 11 | 2.42 (by race) |
| Total | 0.86 (.79) | 64 | 1.46 (.84) | 49 | 2.85 (interaction) |
| Peer Tolerance of Substance Use | |||||
| White | 2.10 (.67) | 38 | 2.54 (.69) | 38 | 12.99 (by MJ)* |
| Minority | 1.84 (.88) | 26 | 2.57 (1.01) | 11 | 0.50 (by race) |
| Total | 2.00 (.76) | 64 | 2.55 (.76) | 49 | 0.80 (interaction) |
| Deviant Peers (Teen report) | |||||
| White | 1.81 (.59) | 38 | 2.66 (.90) | 38 | 5.40 (by MJ) t |
| Minority | 2.25 (.85) | 26 | 2.16 (.66) | 11 | 0.04 (by race) |
| Total | 1.99 (.73) | 64 | 2.55 (.87) | 49 | 8.28 (interaction)* |
| Prosocial Peers (Teen report) | |||||
| White | 3.67 (.67) | 38 | 3.08 (.65) | 38 | 4.41 (by MJ) t |
| Minority | 3.39 (.79) | 26 | 3.36 (.55) | 11 | 0.00 (by race) |
| Total | 3.55 (.73) | 64 | 3.14 (.64) | 49 | 3.82 (interaction) |
| Deviant Peers (Parent report) | |||||
| White | 1.64 (.72) | 37 | 2.51 (.97) | 37 | 8.60 (by MJ)* |
| Minority | 2.10 (1.13) | 23 | 2.46 (1.22) | 11 | 0.91 (by race) |
| Total | 1.82 (.92) | 60 | 2.47 (1.01) | 48 | 1.53 (interaction) |
| Prosocial Peers (Parent report) | |||||
| White | 3.68 (.89) | 37 | 2.85 (.88) | 37 | 1.56 (by MJ) |
| Minority | 2.75 (1.14) | 24 | 3.05 (1.19) | 11 | 2.99 (by race) |
| Total | 3.31 (1.09) | 61 | 2.91 (.95) | 48 | 7.00 (interaction) t |
*
p < 0.008 (Bonferroni correction)
t
p < 0.05 (trend towards significance)