Table 1.
Sample Characteristics, Pretest Equivalence, and Posttest Differences by Experimental Condition
| Measures | Total a | Control b | Treatment c | t-value | P | Cohen’s d |
|---|---|---|---|---|---|---|
| Demographic characteristics (pretest) | ||||||
| Economic hardship | 10.41 (2.89) | 10.12 (2.88) | 10.67 (2.88) | 2.05 | 0.04 | -- |
| SES | −0.13 (8.43) | −0.05 (0.82) | 0.02 (0.86) | 0.98 | 0.33 | -- |
| Single-parent family structure | 0.62 (0.49) | 0.62 (0.49) | 0.62 (0.49) | −0.17 | 0.87 | -- |
| Unemployment | 0.61 (0.49) | 0.64 (0.48) | 0.57 (0.50) | −0.27 | 0.79 | |
| Living below poverty level | 0.77 (0.42) | 0.77 (0.42) | 0.76 (0.43) | −1.48 | 0.14 | |
|
| ||||||
| Measures of risk behavior vulnerability | ||||||
| Tolerance of deviance | ||||||
| Pretest | 18.67 (5.01) | 19.11 (6.30) | 18.26 (3.39) | −1.80 | 0.07 | -- |
| Posttest | 18.92 (5.60) | 19.83 (7.10) | 18.05 (3.48) | −3.21 | 0.01 | 0.32 |
| Risk behavior intentions | ||||||
| Pretest | 14.43 (3.63) | 14.59 (4.01) | 14.30 (3.25) | −0.86 | 0.39 | -- |
| Posttest | 14.80 (4.15) | 15.19 (4.83) | 14.42 (3.34) | −1.89 | 0.06 | 0.19 |
| Peer behavior | ||||||
| Pretest | 0.04 (6.66) | 0.46 (6.96) | −0.35 (6.36) | −1.31 | 0.19 | -- |
| Posttest | −0.19 (6.46) | 0.39 (7.12) | −.73 (5.71) | −1.77 | 0.08 | 0.17 |
|
| ||||||
| Mediators | ||||||
| Self-regulation index | ||||||
| Pretest | 0.00 (2.17) | −0.02 (2.21) | 0.02 (2.14) | 0.21 | 0.84 | -- |
| Posttest | 0.00 (2.17) | −0.30 (2.34) | 0.28 (1.95) | 2.75 | 0.01 | 0.27 |
| Parenting index | ||||||
| Pretest | 0.00 (3.07) | 0.05 (3.04) | −0.04 (3.11) | −0.31 | 0.75 | -- |
| Posttest | 0.01 (2.96) | −0.32(3.24) | 0.28 (2.63) | 2.08 | 0.04 | 0.20 |
a
N = 465.
b
n = 223.
c
n = 242.