| CEC | Correlation | CEC2 | CEC3 | ΔCEC2-1 | ΔCEC3-2 |
| CEC1 | Pearson Correlation | 0.927** | 0.918** | −0.311 | 0.057 |
| Sig. (2-tailed) | 0.000 | 0.000 | 0.139 | 0.790 | |
| CEC2 | Pearson Correlation | 0.989** | 0.051 | 0.033 | |
| Sig. (2-tailed) | 0.000 | 0.812 | 0.878 | ||
| CEC3 | Pearson Correlation |
| 0.036 | 0.177 | |
| Sig. (2-tailed) |
| 0.867 | 0.407 | ||
| ΔCEC2-1 | Pearson Correlation |
|
| −0.130 | |
| Sig. (2-tailed) |
|
| 0.544 |