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sirt (version 0.47-36)

Supplementary Item Response Theory Models

Description

Supplementary item response theory models to complement existing functions in R.

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Version

Install

install.packages('sirt')

Monthly Downloads

2,917

Version

0.47-36

License

GPL (>= 2)

Maintainer

Alexander Robitzsch

Last Published

August 30th, 2014

Functions in sirt (0.47-36)

ccov.np

Nonparametric Estimation of Conditional Covariances of Item Pairs
data.activity.itempars

Item Parameters Cultural Activities
marginal.truescore.reliability

True-Score Reliability for Dichotomous Data
md.pattern.sirt

Response Pattern in a Binary Matrix
data.pars1.rasch

Item Parameters for Three Studies Obtained by 1PL and 2PL Estimation
data.ess2005

Dataset European Social Survey 2005
greenyang.reliability

Reliability for Dichotomous Item Response Data Using the Method of Green and Yang (2009)
data.long

Longitudinal Dataset
data.pisaRead

Dataset PISA Reading
class.accuracy.rasch

Classification Accuracy in the Rasch Model
mirt.wrapper

Some Functions for Wrapping with the mirt Package
sia.sirt

Statistical Implicative Analysis (SIA)
data.ml

Multilevel Datasets
R2noharm.EAP

EAP Factor Score Estimation
mle.pcm.group

Maximum Likelihood Estimation of Person or Group Parameters in the Generalized Partial Credit Model
dif.variance

DIF Variance
data.big5

Dataset Big 5 from qgraph Package
lc.2raters

Latent Class Model for Two Exchangeable Raters and One Item
data.mixed1

Dataset with Mixed Dichotomous and Polytomous Item Responses
fuzcluster

Clustering for Continuous Fuzzy Data
R2conquest

Running ConQuest From Within R
isop.test

Testing the ISOP Model
dirichlet.mle

Maximum Likelihood Estimation of the Dirichlet Distribution
fit.isop

Fitting the ISOP and ADISOP Model for Frequency Tables
dirichlet.simul

Simulation of a Dirichlet Distributed Vectors
dif.logistic.regression

Differential Item Functioning using Logistic Regression Analysis
gom.em

Discrete (Rasch) Grade of Membership Model
data.sirt

Some Example Datasets for the sirt Package
dif.strata.variance

Stratified DIF Variance
eigenvalues.manymatrices

Computation of Eigenvalues of Many Symmetric Matrices
data.mcdonald

Some Datasets from McDonald's Test Theory Book
isop.scoring

Scoring Persons and Items in the ISOP Model
equating.rasch

Equating in the Generalized Logistic Rasch Model
automatic.recode

Automatic Method of Finding Keys in a Dataset with Raw Item Responses
stratified.cronbach.alpha

Stratified Cronbach's Alpha
detect.index

Calculation of the DETECT Index
prob.guttman

Probabilistic Guttman Model
data.noharm

Datasets for NOHARM Analysis
fuzdiscr

Estimation of a Discrete Distribution for Fuzzy Data (Data in Belief Function Framework)
data.inv4gr

Dataset for Invariance Testing with 4 Groups
mcmc.list.descriptives

Computation of Descriptive Statistics for a mcmc.list Object
rasch.pairwise.itemcluster

Pairwise Estimation of the Rasch Model for Locally Dependent Items
linking.robust

Robust Linking of Item Intercepts
data.timss

Dataset TIMSS Mathematics
sim.rasch.dep

Simulation of the Rasch Model with Locally Dependent Responses
mcmclist2coda

Write Coda File from an Object of Class mcmc.list
rasch.va

Estimation of the Rasch Model with Variational Approximation
data.liking.science

Dataset 'Liking For Science'
rasch.jml.biascorr

Bias Correction of Item Parameters for Joint Maximum Likelihood Estimation in the Rasch model
data.reck

Datasets from Reckase' Book Multidimensional Item Response Theory
data.pirlsmissing

Dataset from PIRLS Study with Missing Responses
expl.detect

Exploratory DETECT Analysis
qmc.nodes

Calculation of Quasi Monte Carlo Integration Points
plausible.value.imputation.raschtype

Plausible Value Imputation in Generalized Logistic Item Response Model
isop

Fit Unidimensional ISOP and ADISOP Model to Dichotomous and Polytomous Item Responses
rasch.prox

PROX Estimation Method for the Rasch Model
matrixfunctions.sirt

Some Matrix Functions
f1d.irt

Functional Unidimensional Item Response Model
pbivnorm2

Cumulative Function for the Bivariate Normal Distribution
sim.qm.ramsay

Simulate from Ramsay's Quotient Model
noharm.sirt

NOHARM Model in R
personfit.stat

Person Fit Statistics for the Rasch Model
latent.regression.em.raschtype

Latent Regression Model for the Generalized Logistic Item Response Model and the Linear Model for Normal Responses
data.pisaPars

Item Parameters from Two PISA Studies
invariance.alignment

Alignment Procedure for Linking under Approximate Invariance
data.ratings

Rating Dataset 1
R2noharm

Estimation of a NOHARM Analysis from within R
equating.rasch.jackknife

Jackknife Equating Error in Generalized Logistic Rasch Model
lavaan2mirt

Converting a lavaan Model into a mirt Model
data.wide2long

Converting a Data Frame from Wide Format in a Long Format
rasch.pml2

Pairwise Marginal Likelihood Estimation for the Probit Rasch Model
eigenvalues.sirt

First Eigenvalues of a Symmetric Matrix
rasch.jml

Joint Maximum Likelihood (JML) Estimation of the Rasch Model
testlet.marginalized

Marginal Item Parameters from a Testlet (Bifactor) Model
monoreg.rowwise

Monotone Regression for Rows or Columns in a Matrix
data.math

Dataset Mathematics
linking.haberman

Linking in the 2PL/Generalized Partial Credit Model
mcmc.2pnoh

MCMC Estimation of the Hierarchical IRT Model for Criterion-Referenced Measurement
data.read

Dataset Reading
sirt-package

Supplementary Item Response Theory Models
data.timss07.G8.RUS

TIMSS 2007 Grade 8 Mathematics and Science Russia
tam2mirt

Converting a fitted TAM Object into a mirt Object
wle.rasch

Weighted Likelihood Estimation of Person Abilities
rasch.mirtlc

Multidimensional Latent Class 1PL and 2PL Model
rasch.mml2

Estimation of the Generalized Logistic Item Response Model, Ramsay's Quotient Model, Nonparametric Item Response Model, Pseudo-Likelihood Estimation and a Missing Data Item Response Model
summary.mcmc.sirt

Summary Method for Objects of Class mcmc.sirt
mcmc.2pno.ml

Random Item Response Model / Multilevel IRT Model
plot.np.dich

Plot Method for Object of Class np.dich
person.parameter.rasch.copula

Person Parameter Estimation of the Rasch Copula Model (Braeken, 2011)
lsdm

Least Squares Distance Method of Cognitive Validation
mcmc.3pno.testlet

3PNO Testlet Model
polychoric2

Polychoric Correlation
pgenlogis

Calculation of Probabilities and Moments for the Generalized Logistic Item Response Model
yen.q3

Estimation of the $Q_3$ Statistic (Yen, 1984)
rasch.copula2

Multidimensional IRT Copula Model
plot.mcmc.sirt

Plot Function for Objects of Class mcmc.sirt
tetrachoric2

Tetrachoric Correlation Matrix
mcmc.2pno

MCMC Estimation of the Two-Parameter Normal Ogive Item Response Model
reliability.nonlinearSEM

Estimation of Reliability for Confirmatory Factor Analyses Based on Dichotomous Data
np.dich

Nonparametric Estimation of Item Response Functions
rm.hrm

Hierachical Rater Model Based on Signal Detection Theory (HRM-SDT)
modelfit.sirt

Assessing Model Fit and Local Dependence by Comparing Observed and Expected Item Pair Correlations
rasch.pairwise

Pairwise Estimation Method of the Rasch Model
wle.rasch.jackknife

Standard Error Estimation of WLE by Jackknifing
unidim.test.csn

Test for Unidimensionality of CSN
truescore.irt

Conversion of Trait Scores $\theta$ into True Scores $\tau ( \theta )$
R2noharm.jackknife

Jackknife Estimation of NOHARM Analysis
testlet.yen.q3

$Q_3$ Statistic of Yen (1984) for Testlets
data.pisaMath

Dataset PISA Mathematics
conf.detect

Confirmatory DETECT Analysis
data.raw1

Dataset with Raw Item Responses
rm.facets

Rater Facets Models with Item/Rater Intercepts and Slopes
smirt

Multidimensional Noncompensatory, Compensatory and Partially Compensatory Item Response Model
gom.jml

Grade of Membership Model (Joint Maximum Likelihood Estimation)
prmse.subscores.scales

Proportional Reduction of Mean Squared Error (PRMSE) for Subscale Scores
rasch.jml.jackknife1

Jackknifing the IRT Model Estimated by Joint Maximum Likelihood (JML)
sim.raschtype

Simulate from Generalized Logistic Item Response Model
rasch.evm.pcm

Estimation of the Partial Credit Model using the Eigenvector Method