Table 2. Model comparison using log-likelihood, AIC and BIC in Experiment 1.
| Model | Type | Random intercept effects | Fixed effects | Log likelihood | Number of parameters | Degrees of freedom | AIC | BIC |
|---|---|---|---|---|---|---|---|---|
| 1 | Null | — | — | −504.084 | 3 | 2 | 1,012.167 | 1,020.816 |
| 2* | Null | Roaches | — | −500.964 | 7 | 4 | 1,009.929 | 1,027.226 |
| 3 | Null | Roaches > Groups | — | −500.964 | 11 | 5 | 1,011.929 | 1,033.550 |
| 4 | Full | Roaches | Sex | −499.941 | 11 | 6 | 1,011.882 | 1,037.829 |
| 5 | Full | Roaches | Sex + Trial | −499.450 | 13 | 8 | 1,014.900 | 1,049.495 |
| 6 | Full | Roaches | Sex × Trial | −497.805 | 17 | 10 | 1,015.610 | 1,058.854 |
Notes:
>Nested in.
*
Selected model