Bayesian 4 Parameter Item Response Model
fourPNO: Bayesian 4 Parameter Item Response Model
Gibbs Implementation of 2PNO
Gibbs Implementation of 4PNO
Compute 4PNO Deviance
Generate Random Multivariate Normal Distribution
Calculate Tabulated Total Scores
Simulate from 4PNO Model
Estimate Barton & Lord's (1981) <doi:10.1002/j.2333-8504.1981.tb01255.x> four parameter IRT model with lower and upper asymptotes using Bayesian formulation described by Culpepper (2016) <doi:10.1007/s11336-015-9477-6>.