| Parents/Controls | Mean (SD)/ranges |
| RMM | 9.9254 (0.8109)/8.5 - 12.4 |
| LMM | 9.9412 (0.7700)/8.5 - 12.6 |
| RMF | 11.036 (0.9354)/8.9 - 13 |
| LMF | 11.092 (0.9378)/8.9 - 13 |
| RMWC | 9.338 (0.5367)/7.9 - 10.3 |
| LMWC | 9.196 (0.8789)/5.1 - 10.3 |
| RMMC | 10.3841 (0.9912)/8.1 - 14.8 |
| LMMC | 10.4021 (0.9940)/ 8.1/14.8 |