make_guess_lik_difficulty: Create difficulty-parameterized likelihood function (no DK)
Description
Factory function that creates a likelihood function parameterized with
an unbounded difficulty score instead of gamma. Used internally by
lca_difficulty().
Usage
make_guess_lik_difficulty(base_rate = 0.25)
Value
A function that takes x (parameters) and data (transition matrix)
Arguments
- base_rate
minimum guessing probability (1/K for K-choice items)