Table 4:
Results of Multivariate Repeated Measures Model Predicting Alcohol Use by Peer Behavior
| Variables | Pillai’s Trace | F | P | Eta2 |
|---|---|---|---|---|
| Time | 0.010 | 0.504 | 0.732 | 0.01 |
| Time × Age | 0.010 | 0.496 | 0.739 | 0.01 |
| Time × Race | 0.029 | 1.481 | 0.209 | 0.03 |
| Time × Gender | 0.071 | 3.834 | 0.005 | 0.07 |
| Time × Family History of Substance Use | 0.013 | 0.684 | 0.604 | 0.01 |
| Time × Antisocial Behavior | 0.057 | 3.003 | 0.020 | 0.06 |
| Time × Peer Risk Behavior | 0.011 | 0.546 | 0.702 | 0.01 |
| Time × Peer Substance User | 0.039 | 2.040 | 0.090 | 0.04 |
| Time × Offers to Use Substances | 0.031 | 1.615 | 0.172 | 0.03 |
| Time × Closeness | 0.143 | 1.074 | 0.363 | 0.04 |
| Time × Risk Behavior × Closeness | 0.058 | 0.752 | 0.741 | 0.02 |
| Time × Peer Substance User × Closeness | 0.114 | 1.191 | 0.254 | 0.03 |
| Time × Offers to Use Substances × Closeness | 0.041 | 0.521 | 0.937 | 0.01 |
Note: Eta-Squared effect sizes are interpreted as .03=small, .06=medium, .14=large (Cohen, 1988).