fourPNO: Bayesian 4 Parameter Item Response Model

Estimate Barton & Lord's four parameter IRT model with lower and upper asymptotes using Bayesian formulation described by Culpepper (2015).

Author
Steven Andrew Culpepper [aut, cre]
Date of publication
2015-12-16 16:09:35
Maintainer
Steven Andrew Culpepper <sculpepp@illinois.edu>
License
GPL (>= 2)
Version
1.0.3

View on CRAN

Man pages

Gibbs_2PNO
Gibbs Implementation of 2PNO
Gibbs_4PNO
Gibbs Implementation of 4PNO
kappa_initialize
Initialize Thresholds
min2LL_4pno
Compute 4PNO Deviance
rmvnorm
Generate Random Multivariate Normal Distribution
Total_Tabulate
Calculate Tabulated Total Scores
update_2pno
Update 2PNO Model Parameters
update_ab_NA
Update a and b Parameters of 2PNO, 3PNO, 4PNO
update_ab_norestriction
Update a and b Parameters of 4pno without alpha > 0...
update_theta
Internal Function for Updating Theta in Gibbs Sampler
update_WKappaZ_NA
Update Lower and Upper Asymptote Parameters of 4PNO
Y_4pno_simulate
Simulate from 4PNO Model

Files in this package

fourPNO
fourPNO/inst
fourPNO/inst/CITATION
fourPNO/src
fourPNO/src/Makevars
fourPNO/src/fourpno_101315.cpp
fourPNO/src/Makevars.win
fourPNO/src/RcppExports.cpp
fourPNO/NAMESPACE
fourPNO/R
fourPNO/R/fourPNO-internal.R
fourPNO/R/RcppExports.R
fourPNO/MD5
fourPNO/DESCRIPTION
fourPNO/man
fourPNO/man/update_ab_norestriction.Rd
fourPNO/man/rmvnorm.Rd
fourPNO/man/update_theta.Rd
fourPNO/man/update_WKappaZ_NA.Rd
fourPNO/man/update_ab_NA.Rd
fourPNO/man/kappa_initialize.Rd
fourPNO/man/Total_Tabulate.Rd
fourPNO/man/min2LL_4pno.Rd
fourPNO/man/Y_4pno_simulate.Rd
fourPNO/man/Gibbs_2PNO.Rd
fourPNO/man/Gibbs_4PNO.Rd
fourPNO/man/update_2pno.Rd