Table 3.
Final mediation model: maximum likelihood (standardized) estimates and selected fit indices.
| Description | Model parameters | |
|---|---|---|
| Estimates | z-values | |
| Direct paths | ||
| Science interest → Science self-efficacy | 0.43*** | 57.37 |
| Science utility → Science self-efficacy | 0.19*** | 23.64 |
| Science self-efficacy → Science identity | 0.32*** | 41.93 |
| Science interest → Science identity | 0.23*** | 27.81 |
| Science utility → Science identity | 0.16*** | 20.87 |
| Science self-efficacy → Science achievement | 0.14*** | 15.15 |
| Science identity → Science achievement | 0.12*** | 13.17 |
| Indirect paths | ||
| Science interest → Science self-efficacy → Science identity | 0.14*** | 33.45 |
| Science interest → Science self-efficacy → Science achievement | 0.06*** | 14.58 |
| Science interest → Science identity → Science achievement | 0.03*** | 11.87 |
| Science interest → Self-Efficacy → Identity → Science achievement | 0.02*** | 12.20 |
| Science utility → Science self-efficacy → Science identity | 0.06*** | 20.56 |
| Science utility → Science self-efficacy → Science achievement | 0.03*** | 12.72 |
| Science utility → Science identity → Science achievement | 0.02*** | 11.11 |
| Science utility → Self-Efficacy → Identity → Science achievement | 0.01*** | 11.05 |
| Total effect | ||
| Science interest → Science achievement | 0.24*** | 38.33 |
| Science utility → Science achievement | 0.11*** | 24.05 |
| Selected fit indices | ||
| X2 | 16,599.39*** | |
| Root-Mean square error of approximation (RMSEA) | 0.02, CI (0.01–0.03) | |
| Standardized root-mean-square residual (SRMR) | 0.01 | |
| Comparative fit index (CFI) | 1.00 | |
| Tucker-Lewis index (TLI) | 1.00 | |
***
p < 0.001.