Table 4. Hierarchical multiple regression analyses.
| Outcome variablesa | Regression: Model 1b | Regression: Model 2c | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ΔR2 d | ΔFe | ßf | tg | ΔR2 d | ΔFe | ßf | tg | DWh | |
| Attention | .14 | 17.37*** | -.38 | -4.17 | < .01 | 0.44 | -.06 | 0.66 | 2.13 |
| Clarity | .16 | 20.07*** | -.40 | -4.48 | .01 | 1.44 | .11 | 1.20 | 2.19 |
| Repair | .21 | 27.01*** | -.45 | -5.19 | < .01 | 0.28 | .05 | 0.53 | 1.87 |
| Self-esteem | .16 | 17.43*** | -.10 | -4.18*** | .10 | 11.57*** | .31 | 3.40*** | 2.05 |
| Affect balance | .04 | 4.30* | -.20 | -2.07* | .04 | 4.34* | .20 | 2.08* | 2.05 |
| Emotional symptoms | .08 | 8.88** | -.30 | -2.98** | .10 | 11.41*** | -.32 | -3.38*** | 2.16 |
| Behavioural problems | .06 | 5.98* | -.25 | -2.45* | .03 | 3.01 | -.17 | -1.73 | 2.04 |
| Peer problems | .16 | 17.16*** | -.40 | -4.14*** | .02 | 2.10 | -.14 | -1.45 | 1.99 |
| Hyperactivity | .26 | 33.29*** | -.51 | -5.77*** | .03 | 3.91* | -.17 | -1.98* | 2.22 |
| Prosocial behaviour | .12 | 12.43*** | -.34 | -3.53*** | .01 | 0.48 | .07 | 0.69 | 1.61 |
aOutcome variables: change scores T1 to T2 were used for each for the regression analyses.
bPredictor = pre-intervention score
cPredictor = experimental condition, controlled for pre-intervention score
dChange in R2
eChange in F
fRegression coefficient
gValue of t-test statistic
hDurbin-Watson test.
*p≤.05.
**p≤.01.
***p≤.001.