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sirt (version 1.6-0)

Supplementary Item Response Theory Models

Description

Supplementary item response theory models to complement existing functions in R, including multidimensional compensatory and noncompensatory IRT models, MCMC for hierarchical IRT models and testlet models, NOHARM, faceted and hierarchical rater models, ordinal IRT model (ISOP), discrete grade of membership model, latent regression models, DETECT statistic, local structural equation modeling (LSEM).

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Version

Install

install.packages('sirt')

Monthly Downloads

2,637

Version

1.6-0

License

GPL (>= 2)

Maintainer

Alexander Robitzsch

Last Published

May 20th, 2015

Functions in sirt (1.6-0)

data.pisaRead

Dataset PISA Reading
mcmc.2pno.ml

Random Item Response Model / Multilevel IRT Model
data.inv4gr

Dataset for Invariance Testing with 4 Groups
isop

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

Pairwise Estimation of the Rasch Model for Locally Dependent Items
fit.isop

Fitting the ISOP and ADISOP Model for Frequency Tables
automatic.recode

Automatic Method of Finding Keys in a Dataset with Raw Item Responses
f1d.irt

Functional Unidimensional Item Response Model
conf.detect

Confirmatory DETECT and polyDETECT Analysis
noharm.sirt

NOHARM Model in R
brm-Methods

Functions for the Beta Item Response Model
equating.rasch.jackknife

Jackknife Equating Error in Generalized Logistic Rasch Model
data.liking.science

Dataset 'Liking For Science'
IRT.mle

Person Parameter Estimation
R2conquest

Running ConQuest From Within R
R2noharm.jackknife

Jackknife Estimation of NOHARM Analysis
detect.index

Calculation of the DETECT and polyDETECT Index
data.reck

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

Dataset Mathematics
class.accuracy.rasch

Classification Accuracy in the Rasch Model
expl.detect

Exploratory DETECT Analysis
pgenlogis

Calculation of Probabilities and Moments for the Generalized Logistic Item Response Model
lsem.estimate

Local Structural Equation Models (LSEM)
fuzdiscr

Estimation of a Discrete Distribution for Fuzzy Data (Data in Belief Function Framework)
lsem.permutationTest

Permutation Test for a Local Structural Equation Model
data.big5

Dataset Big 5 from qgraph Package
mcmclist2coda

Write Coda File from an Object of Class mcmc.list
data.noharm

Datasets for NOHARM Analysis
data.long

Longitudinal Dataset
greenyang.reliability

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

Multilevel Datasets
data.bs

Datasets from Borg and Staufenbiel (2007)
mcmc.2pnoh

MCMC Estimation of the Hierarchical IRT Model for Criterion-Referenced Measurement
dirichlet.simul

Simulation of a Dirichlet Distributed Vectors
data.pisaMath

Dataset PISA Mathematics
categorize

Categorize and Decategorize Variables in a Data Frame
plot.mcmc.sirt

Plot Function for Objects of Class mcmc.sirt
mirt.wrapper

Some Functions for Wrapping with the mirt Package
reliability.nonlinearSEM

Estimation of Reliability for Confirmatory Factor Analyses Based on Dichotomous Data
pcm.conversion

Conversion of the Parameterization of the Partial Credit Model
rasch.evm.pcm

Estimation of the Partial Credit Model using the Eigenvector Method
data.lsem

Datasets for Local Structural Equation Models / Moderated Factor Analysis
dif.logistic.regression

Differential Item Functioning using Logistic Regression Analysis
sim.qm.ramsay

Simulate from Ramsay's Quotient Model
eigenvalues.sirt

First Eigenvalues of a Symmetric Matrix
gom.em

Discrete (Rasch) Grade of Membership Model
latent.regression.em.raschtype

Latent Regression Model for the Generalized Logistic Item Response Model and the Linear Model for Normal Responses
testlet.marginalized

Marginal Item Parameters from a Testlet (Bifactor) Model
dif.variance

DIF Variance
data.raw1

Dataset with Raw Item Responses
data.ratings

Rating Datasets
invariance.alignment

Alignment Procedure for Linking under Approximate Invariance
stratified.cronbach.alpha

Stratified Cronbach's Alpha
data.mcdonald

Some Datasets from McDonald's Test Theory Book
np.dich

Nonparametric Estimation of Item Response Functions
yen.q3

Estimation of the $Q_3$ Statistic (Yen, 1984)
rasch.jml.jackknife1

Jackknifing the IRT Model Estimated by Joint Maximum Likelihood (JML)
data.ess2005

Dataset European Social Survey 2005
tam2mirt

Converting a fitted TAM Object into a mirt Object
lc.2raters

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

Dataset TIMSS Mathematics
data.pirlsmissing

Dataset from PIRLS Study with Missing Responses
rasch.va

Estimation of the Rasch Model with Variational Approximation
eigenvalues.manymatrices

Computation of Eigenvalues of Many Symmetric Matrices
data.read

Dataset Reading
mcmc.2pno

MCMC Estimation of the Two-Parameter Normal Ogive Item Response Model
data.timss07.G8.RUS

TIMSS 2007 Grade 8 Mathematics and Science Russia
lsdm

Least Squares Distance Method of Cognitive Validation
fuzcluster

Clustering for Continuous Fuzzy Data
data.pisaPars

Item Parameters from Two PISA Studies
dif.strata.variance

Stratified DIF Variance
data.pars1.rasch

Item Parameters for Three Studies Obtained by 1PL and 2PL Estimation
data.g308

C-Test Datasets
personfit.stat

Person Fit Statistics for the Rasch Model
sirt-package

Supplementary Item Response Theory Models
rasch.copula2

Multidimensional IRT Copula Model
data.activity.itempars

Item Parameters Cultural Activities
data.eid

Examples with Datasets from Eid and Schmidt (2014)
R2noharm.EAP

EAP Factor Score Estimation
sim.rasch.dep

Simulation of the Rasch Model with Locally Dependent Responses
person.parameter.rasch.copula

Person Parameter Estimation of the Rasch Copula Model (Braeken, 2011)
data.mixed1

Dataset with Mixed Dichotomous and Polytomous Item Responses
data.sirt

Some Example Datasets for the sirt Package
modelfit.sirt

Assessing Model Fit and Local Dependence by Comparing Observed and Expected Item Pair Correlations
prob.guttman

Probabilistic Guttman Model
data.wide2long

Converting a Data Frame from Wide Format in a Long Format
rasch.jml.biascorr

Bias Correction of Item Parameters for Joint Maximum Likelihood Estimation in the Rasch model
pbivnorm2

Cumulative Function for the Bivariate Normal Distribution
rm.sdt

Hierachical Rater Model Based on Signal Detection Theory (HRM-SDT)
rasch.pairwise

Pairwise Estimation Method of the Rasch Model
rasch.jml

Joint Maximum Likelihood (JML) Estimation of the Rasch Model
polychoric2

Polychoric Correlation
mcmc.3pno.testlet

3PNO Testlet Model
lavaan2mirt

Converting a lavaan Model into a mirt Model
unidim.test.csn

Test for Unidimensionality of CSN
md.pattern.sirt

Response Pattern in a Binary Matrix
nedelsky-methods

Functions for the Nedelsky Model
mcmc.list.descriptives

Computation of Descriptive Statistics for a mcmc.list Object
smirt

Multidimensional Noncompensatory, Compensatory and Partially Compensatory Item Response Model
mle.pcm.group

Maximum Likelihood Estimation of Person or Group Parameters in the Generalized Partial Credit Model
mirt.specify.partable

Specify or modify a Parameter Table in mirt
gom.jml

Grade of Membership Model (Joint Maximum Likelihood Estimation)
isop.test

Testing the ISOP Model
sim.raschtype

Simulate from Generalized Logistic Item Response Model
dirichlet.mle

Maximum Likelihood Estimation of the Dirichlet Distribution
isop.scoring

Scoring Persons and Items in the ISOP Model
monoreg.rowwise

Monotone Regression for Rows or Columns in a Matrix
rm.facets

Rater Facets Models with Item/Rater Intercepts and Slopes
rasch.prox

PROX Estimation Method for the Rasch Model
sia.sirt

Statistical Implicative Analysis (SIA)
linking.robust

Robust Linking of Item Intercepts
wle.rasch

Weighted Likelihood Estimation of Person Abilities
marginal.truescore.reliability

True-Score Reliability for Dichotomous Data
qmc.nodes

Calculation of Quasi Monte Carlo Integration Points
tetrachoric2

Tetrachoric Correlation Matrix
prmse.subscores.scales

Proportional Reduction of Mean Squared Error (PRMSE) for Subscale Scores
plausible.value.imputation.raschtype

Plausible Value Imputation in Generalized Logistic Item Response Model
rasch.mirtlc

Multidimensional Latent Class 1PL and 2PL Model
plot.np.dich

Plot Method for Object of Class np.dich
pcm.fit

Item and Person Fit Statistics for the Partial Credit Model
rasch.pml2

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

Some Matrix Functions
wle.rasch.jackknife

Standard Error Estimation of WLE by Jackknifing
equating.rasch

Equating in the Generalized Logistic Rasch Model
testlet.yen.q3

$Q_3$ Statistic of Yen (1984) for Testlets
summary.mcmc.sirt

Summary Method for Objects of Class mcmc.sirt
R2noharm

Estimation of a NOHARM Analysis from within R
ccov.np

Nonparametric Estimation of Conditional Covariances of Item Pairs
linking.haberman

Linking in the 2PL/Generalized Partial Credit 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
truescore.irt

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