Table 4.
Model results for pre-post exploratory outcomes.
| Effect | Interest | Attitude | Beliefs (Effort) | Beliefs (Innate) | Beliefs (Expert) | Beliefs (Certain) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed | Est. | SE | Est. | SE | Est. | SE | Est. | SE | Est. | SE | Est. | SE |
| Intercept | 4.43 | 0.17 | 4.30 | 0.12 | 4.47 | 0.11 | 2.12 | 0.10 | 3.33 | 0.15 | 2.76 | 0.12 |
| Pretest | 0.54 | 0.11 | 0.89 | 0.09 | 0.67 | 0.10 | 0.61 | 0.10 | 0.60 | 0.16 | 0.53 | 0.14 |
| SIWI | 0.83* | 0.23 | 0.25 | 0.16 | 0.44* | 0.15 | 0.28 | 0.14 | 0.31 | 0.22 | 0.11 | 0.17 |
| Random | Var. | SD | Var. | SD | Var. | SD | Var. | SD | Var. | SD | Var. | SD |
| Residual | 0.65 | 0.81 | 0.30 | 0.55 | 0.24 | 0.49 | 0.23 | 0.48 | 0.50 | 0.71 | 0.30 | 0.55 |
| Effect size | 1.03 | 0.46 | 0.90 | 0.58 | 0.44 | 0.20 | ||||||
Est., estimate; Var, variance; SE, standard error. *p < 0.05 for fixed effects. Effect sizes are Hedges g: the treatment effect divided by the residual SD (Hedges, 2007).