; OpenIRT Config File ; NO NOT MODIFY ; Specify any model specific options here: [model_options] sampler = slice ; MH tuning parameters tune_theta = 0.6 tune_a = 0.15 tune_b = 0.15 tune_c = 80.0 tune_d = 0.2 ; Specify any fixed priors or hyperprior parameters here: [priors] ; 2PL and 3PL priors a_mu = -0.30 a_sigma = 0.40 b_mu = 0.20 b_sigma = 1.2 ; 3PL priors c_alpha = 9.0 c_beta = 36.0 ; GPC priors aGPC_mu = -0.6 aGPC_sigma = 0.3 bGPC_mu = 0.6 bGPC_sigma = 0.7 dGPC_mu = -.45 dGPC_sigma = 1.5 ; Priors on ability, mean and variance mu_mu = 0.0 mu_sigma = 1.0 sigma_alpha = 1.0 sigma_beta = 2.0