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sirt (version 1.9-0)

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), latent regression models, DETECT statistic, local structural equation modeling (LSEM).

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Version

Install

install.packages('sirt')

Monthly Downloads

2,256

Version

1.9-0

License

GPL (>= 2)

Maintainer

Alexander Robitzsch

Last Published

November 4th, 2015

Functions in sirt (1.9-0)

data.liking.science

Dataset 'Liking For Science'
data.pisaRead

Dataset PISA Reading
dif.variance

DIF Variance
data.mixed1

Dataset with Mixed Dichotomous and Polytomous Item Responses
eigenvalues.manymatrices

Computation of Eigenvalues of Many Symmetric Matrices
data.read

Dataset Reading
data.mcdonald

Some Datasets from McDonald's Test Theory Book
data.noharm

Datasets for NOHARM Analysis
data.timss07.G8.RUS

TIMSS 2007 Grade 8 Mathematics and Science Russia
mle.pcm.group

Maximum Likelihood Estimation of Person or Group Parameters in the Generalized Partial Credit Model
greenyang.reliability

Reliability for Dichotomous Item Response Data Using the Method of Green and Yang (2009)
rasch.jml.biascorr

Bias Correction of Item Parameters for Joint Maximum Likelihood Estimation in the Rasch model
detect.index

Calculation of the DETECT and polyDETECT Index
isop.test

Testing the ISOP Model
isop.scoring

Scoring Persons and Items in the ISOP Model
data.bs

Datasets from Borg and Staufenbiel (2007)
data.g308

C-Test Datasets
data.inv4gr

Dataset for Invariance Testing with 4 Groups
sia.sirt

Statistical Implicative Analysis (SIA)
pbivnorm2

Cumulative Function for the Bivariate Normal Distribution
data.pisaPars

Item Parameters from Two PISA Studies
data.pirlsmissing

Dataset from PIRLS Study with Missing Responses
data.activity.itempars

Item Parameters Cultural Activities
conf.detect

Confirmatory DETECT and polyDETECT Analysis
data.math

Dataset Mathematics
R2noharm.jackknife

Jackknife Estimation of NOHARM Analysis
fit.isop

Fitting the ISOP and ADISOP Model for Frequency Tables
data.reck

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

Some Example Datasets for the sirt Package
data.pisaMath

Dataset PISA Mathematics
R2noharm

Estimation of a NOHARM Analysis from within R
IRT.mle

Person Parameter Estimation
dirichlet.mle

Maximum Likelihood Estimation of the Dirichlet Distribution
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)
class.accuracy.rasch

Classification Accuracy in the Rasch Model
expl.detect

Exploratory DETECT Analysis
invariance.alignment

Alignment Procedure for Linking under Approximate Invariance
rasch.evm.pcm

Estimation of the Partial Credit Model using the Eigenvector Method
data.big5

Dataset Big 5 from qgraph Package
lsem.estimate

Local Structural Equation Models (LSEM)
dirichlet.simul

Simulation of a Dirichlet Distributed Vectors
smirt

Multidimensional Noncompensatory, Compensatory and Partially Compensatory Item Response Model
isop

Fit Unidimensional ISOP and ADISOP Model to Dichotomous and Polytomous Item Responses
btm

Extended Bradley-Terry Model
lavaan2mirt

Converting a lavaan Model into a mirt Model
data.ratings

Rating Datasets
md.pattern.sirt

Response Pattern in a Binary Matrix
data.raw1

Dataset with Raw Item Responses
ccov.np

Nonparametric Estimation of Conditional Covariances of Item Pairs
data.eid

Examples with Datasets from Eid and Schmidt (2014)
mcmc.2pno

MCMC Estimation of the Two-Parameter Normal Ogive Item Response Model
plot.mcmc.sirt

Plot Function for Objects of Class mcmc.sirt
reliability.nonlinearSEM

Estimation of Reliability for Confirmatory Factor Analyses Based on Dichotomous Data
fuzcluster

Clustering for Continuous Fuzzy Data
mcmclist2coda

Write Coda File from an Object of Class mcmc.list
pgenlogis

Calculation of Probabilities and Moments for the Generalized Logistic Item Response Model
tam2mirt

Converting a fitted TAM Object into a mirt Object
np.dich

Nonparametric Estimation of Item Response Functions
polychoric2

Polychoric Correlation
lsdm

Least Squares Distance Method of Cognitive Validation
f1d.irt

Functional Unidimensional Item Response Model
rasch.prox

PROX Estimation Method for the Rasch Model
rasch.va

Estimation of the Rasch Model with Variational Approximation
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
linking.haberman

Linking in the 2PL/Generalized Partial Credit Model
equating.rasch.jackknife

Jackknife Equating Error in Generalized Logistic Rasch Model
mcmc.2pnoh

MCMC Estimation of the Hierarchical IRT Model for Criterion-Referenced Measurement
equating.rasch

Equating in the Generalized Logistic Rasch Model
data.pw

Datasets for Pairwise Comparisons
R2noharm.EAP

EAP Factor Score Estimation
marginal.truescore.reliability

True-Score Reliability for Dichotomous Data
automatic.recode

Automatic Method of Finding Keys in a Dataset with Raw Item Responses
matrixfunctions.sirt

Some Matrix Functions
categorize

Categorize and Decategorize Variables in a Data Frame
rasch.copula2

Multidimensional IRT Copula Model
data.lsem

Datasets for Local Structural Equation Models / Moderated Factor Analysis
data.pars1.rasch

Item Parameters for Three Studies Obtained by 1PL and 2PL Estimation
data.wide2long

Converting a Data Frame from Wide Format in a Long Format
modelfit.sirt

Assessing Model Fit and Local Dependence by Comparing Observed and Expected Item Pair Correlations
dif.logistic.regression

Differential Item Functioning using Logistic Regression Analysis
summary.mcmc.sirt

Summary Method for Objects of Class mcmc.sirt
monoreg.rowwise

Monotone Regression for Rows or Columns in a Matrix
lc.2raters

Latent Class Model for Two Exchangeable Raters and One Item
rasch.jml

Joint Maximum Likelihood (JML) Estimation of the Rasch Model
data.ml

Multilevel Datasets
mirt.wrapper

Some Functions for Wrapping with the mirt Package
person.parameter.rasch.copula

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

Estimation of a Discrete Distribution for Fuzzy Data (Data in Belief Function Framework)
mirt.specify.partable

Specify or modify a Parameter Table in mirt
personfit.stat

Person Fit Statistics for the Rasch Model
nedelsky-methods

Functions for the Nedelsky Model
R2conquest

Running ConQuest From Within R
linking.robust

Robust Linking of Item Intercepts
sirt-package

Supplementary Item Response Theory Models
data.long

Longitudinal Dataset
data.ess2005

Dataset European Social Survey 2005
gom.jml

Grade of Membership Model (Joint Maximum Likelihood Estimation)
pcm.conversion

Conversion of the Parameterization of the Partial Credit Model
plot.np.dich

Plot Method for Object of Class np.dich
sim.raschtype

Simulate from Generalized Logistic Item Response Model
stratified.cronbach.alpha

Stratified Cronbach's Alpha
mcmc.2pno.ml

Random Item Response Model / Multilevel IRT Model
rasch.pairwise.itemcluster

Pairwise Estimation of the Rasch Model for Locally Dependent Items
mcmc.list.descriptives

Computation of Descriptive Statistics for a mcmc.list Object
plausible.value.imputation.raschtype

Plausible Value Imputation in Generalized Logistic Item Response Model
lsem.permutationTest

Permutation Test for a Local Structural Equation Model
noharm.sirt

NOHARM Model in R
rm.sdt

Hierachical Rater Model Based on Signal Detection Theory (HRM-SDT)
sim.qm.ramsay

Simulate from Ramsay's Quotient Model
rasch.mirtlc

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

Pairwise Estimation Method of the Rasch Model
pcm.fit

Item and Person Fit Statistics for the Partial Credit Model
prob.guttman

Probabilistic Guttman Model
testlet.yen.q3

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

Dataset TIMSS Mathematics
rm.facets

Rater Facets Models with Item/Rater Intercepts and Slopes
rasch.pml2

Pairwise Marginal Likelihood Estimation for the Probit Rasch Model
brm-Methods

Functions for the Beta Item Response Model
latent.regression.em.raschtype

Latent Regression Model for the Generalized Logistic Item Response Model and the Linear Model for Normal Responses
mcmc.3pno.testlet

3PNO Testlet Model
dif.strata.variance

Stratified DIF Variance
eigenvalues.sirt

First Eigenvalues of a Symmetric Matrix
qmc.nodes

Calculation of Quasi Monte Carlo Integration Points
likelihood.adjustment

Adjustment and Approximation of Individual Likelihood Functions
yen.q3

Estimation of the $Q_3$ Statistic (Yen, 1984)
testlet.marginalized

Marginal Item Parameters from a Testlet (Bifactor) Model
gom.em

Discrete (Rasch) Grade of Membership Model
wle.rasch.jackknife

Standard Error Estimation of WLE by Jackknifing
sim.rasch.dep

Simulation of the Rasch Model with Locally Dependent Responses
unidim.test.csn

Test for Unidimensionality of CSN
tetrachoric2

Tetrachoric Correlation Matrix
wle.rasch

Weighted Likelihood Estimation of Person Abilities
truescore.irt

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