| Homogeneity Index 1 | ANOVA test (P value) | |
| Group | Mean ± SD | |
| 7B1 | 0.1535 ± 0.0362 | 0.7527 (ns) |
| 7B2 | 0.1580 ± 0.0354 | |
| 7B3 | 0.1504 ± 0.0419 | |
| 5B1 | 0.1652 ± 0.0423 | |
| 5B2 | 0.1462 ± 0.0409 | |
| 5B3 | 0.1393 ± 0.0385 | |