Table 1. Resulting benchmark dose (BMD), benchmark dose lower limit (BMDL), Akaike information criteria (AIC), and weight based on AIC for four different models fitted to data from a fish test with Rainbow trout.
BMD was estimated based on the hybrid approach using 2 standard deviations as the cutoff and BMR = 0.5. The model-averaged BMDLs were based on non-parametric bootstrap.
| Parameters | BMD (mg/L) | BMDL (mg/L) | AIC | Weight | |
|---|---|---|---|---|---|
| Exponential decay | 2 | 12.65 | 6.37 | 106.31 | 0.333 |
| Log–logistic | 3 | 22.91 | 9.05 | 106.65 | 0.237 |
| Weibull type 1 | 3 | 22.72 | 8.12 | 106.58 | 0.253 |
| Weibull type 2 | 3 | 24.26 | 14.26 | 106.94 | 0.177 |
| Model averaging (estimate averaging) |
19.68 | 8.04 | |||
| Model averaging (curve averaging) |
20.35 | 7.73 |