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Table 4 Mediation effect estimates based on single-indicator latent-variable models
Model | Standardized estimate | SE |
|---|---|---|
Model 1: outcome is science achievement | ||
Model without mediator | ||
Waldorf school attendance → outcome (c) | − 0.32* | 0.12 |
Model with mediator | ||
Waldorf school attendance → IBSE (a) | 0.82* | 0.13 |
IBSE → outcome (b) | 0.09 | 0.10 |
Waldorf school attendance → outcome (c') | − 0.40* | 0.16 |
Indirect effect (ab) | 0.07 | 0.80 |
Model 2: outcome is enjoyment of learning science | ||
Model without mediator | ||
Waldorf school attendance → outcome (c) | 0.24 | 0.14 |
Model with mediator | ||
Waldorf school attendance → IBSE (a) | 0.82* | 0.13 |
IBSE → outcome (b) | 0.37* | 0.12 |
Waldorf school attendance → outcome (c') | − 0.07 | 0.17 |
Indirect effect (ab) | 0.31* | 0.12 |
Model 3: outcome is interest in broad science topics | ||
Model without mediator | ||
Waldorf school attendance → outcome (c) | 0.30* | 0.11 |
Model with mediator | ||
Waldorf school attendance → IBSE (a) | 0.82* | 0.13 |
IBSE → outcome (b) | 0.30* | 0.11 |
Waldorf school attendance → outcome (c') | 0.06 | 0.14 |
Indirect effect (ab) | 0.24* | 0.10 |