Utilities and Probability Distributions Related to Multidimensional Person Item Response Models


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Documentation for package ‘irtProb’ version 1.2

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irtProb-package Utilities and Probability Distributions Related to Multidimensional Person Item Response Models (IRT)
checkAdequation Function to Check the Adequation of the Second Derivatives
ctt2irt Functions to Convert from and to CTT and IRT Models
d4pl One, Two, Three and Four Parameters Logistic Distributions
dm4pl Multidimensional One, Two, Three and Four Person Parameters Logistic Distributions
fprime First and Second Derivatives
fsecond First and Second Derivatives
ggr4pl Simulation of Response Patterns and Computation of the Probability of the Patterns
ggrm4pl Simulation of Response Patterns and Computation of the Probability of the Patterns from m4pl
gr4pl Simulation of Response Patterns and Computation of the Probability of the Patterns
grm4pl Simulation of Response Patterns and Computation of the Probability of the Patterns from m4pl
groupLikelihoodCurves Functions to Graph m4pl Likelihood Curves
irt2ctt Functions to Convert from and to CTT and IRT Models
irtProb Utilities and Probability Distributions Related to Multidimensional Person Item Response Models (IRT)
is.modelShow Functions To Manipulate modelShow Class Objects
likelihoodCurve Functions to Graph m4pl Likelihood Curves
m4plEstimate Estimation of the Personal Parameters from the mpl4 Logistic Model
m4plEstimateMore Estimation of the Personal Parameters from the mpl4 Logistic Model
m4plModelShow Results For Each Subject To Each Model
m4plMoreSummary Summary of the Results of Estimation with the m4pl Models
m4plNoMoreSummary Summary of the Results of Estimation with the m4pl Models
m4plPersonParameters Estimation of the Personal Parameters from the mpl4 Logistic Model
m4plSummary Summary of the Results of Estimation with the m4pl Models
meanModels Functions For Choosing The m4pl Best Model(s)
modelChoose Functions For Choosing The m4pl Best Model(s)
modelChooseAdd Functions For Choosing The m4pl Best Model(s)
p4pl One, Two, Three and Four Parameters Logistic Distributions
PCC Graphic Functions to Illustrate Response Curves and Parameter Estimation
pggr4pl Simulation of Response Patterns and Computation of the Probability of the Patterns
pggrm4pl Simulation of Response Patterns and Computation of the Probability of the Patterns from m4pl
pm4pl Multidimensional One, Two, Three and Four Person Parameters Logistic Distributions
propCorrect Utility Functions
q4pl One, Two, Three and Four Parameters Logistic Distributions
qm4pl Multidimensional One, Two, Three and Four Person Parameters Logistic Distributions
r4pl One, Two, Three and Four Parameters Logistic Distributions
rm4pl Multidimensional One, Two, Three and Four Person Parameters Logistic Distributions
rmultinomial Utility Functions
Round Functions To Manipulate modelShow Class Objects
Round.modelShow Functions To Manipulate modelShow Class Objects
summary.modelShow Functions To Manipulate modelShow Class Objects