| Model | Parameter | Population Parameters | |
|---|---|---|---|
| Exponential | |||
| Hyperbolic | |||
| Double | |||
| Exponential | |||
| Generalized | |||
| Hyperbolic | |||
| Hyperboloid | |||
| Generalized | |||
| Hyperbola | |||
| Constant | |||
| Sensitivity | |||
| Additive | |||
| Utility | |||
| Proportional | |||
| Difference | |||
| ITCH | |||
| Tradeoff | |||
Note: Normal+(L,S) represents a truncated normal distribution with mean L, standard deviation S, a lower bound of 0, and no upper bound. Normal− represents a truncated normal distribution with an upper bound of 0 and no lower bound. Gamma(A,B) represents a gamma distribution with shape A and scale B. Certain models were reparameterized for efficiency reasons and/or in order to enforce parameter constraints. In the double exponential model, β = Θ + δ. In the generalized hyperbola model, the parameter β = Θ × α. For the additive utility and double exponential models, A = L × S and B = (1 − L) × S. For the tradeoff model, 𝜃 = Θ + 1