Person Parameter Estimation
EAP Factor Score Estimation
Functions for the Beta Item Response Model
\(Q_3\) Statistic of Yen (1984) for Testlets
Extended Bradley-Terry Model
Running ConQuest From Within R
Estimation of the \(Q_3\) Statistic (Yen, 1984)
Estimation of a NOHARM Analysis from within R
Jackknife Estimation of NOHARM Analysis
Automatic Method of Finding Keys in a Dataset with Raw Item Responses
BEFKI Dataset (Schroeders, Schipolowski, & Wilhelm, 2015)
Classification Accuracy in the Rasch Model
Estimation of a Unidimensional Factor Model under Full and Partial
Measurement Invariance
Categorize and Decategorize Variables in a Data Frame
Dataset Big 5 from qgraph Package
Datasets from Borg and Staufenbiel (2007)
Confirmatory DETECT and polyDETECT Analysis
Nonparametric Estimation of Conditional Covariances of Item Pairs
Examples with Datasets from Eid and Schmidt (2014)
Item Parameters Cultural Activities
Dataset Mathematics
Dataset European Social Survey 2005
Some Datasets from McDonald's Test Theory Book
Dataset 'Liking For Science'
Dataset for Invariance Testing with 4 Groups
Dataset from PIRLS Study with Missing Responses
Longitudinal Dataset
Datasets for Pairwise Comparisons
Dataset PISA Mathematics
Dataset with Mixed Dichotomous and Polytomous Item Responses
C-Test Datasets
Datasets for Local Structural Equation Models / Moderated Factor Analysis
Datasets for NOHARM Analysis
Item Parameters from Two PISA Studies
Multilevel Datasets
Dataset with Raw Item Responses
Item Parameters for Three Studies Obtained by 1PL and 2PL Estimation
Calculation of the DETECT and polyDETECT Index
Converting a Data Frame from Wide Format in a Long Format
Dataset Used in Stoyan, Pommerening and Wuensche (2018)
Dataset TIMSS Mathematics
Dataset PISA Reading
Differential Item Functioning using Logistic Regression Analysis
Exploratory DETECT Analysis
Dataset Reading
TIMSS 2007 Grade 8 Mathematics and Science Russia
Datasets from Reckase' Book Multidimensional Item Response Theory
Maximum Likelihood Estimation of the Dirichlet Distribution
Some Example Datasets for the sirt
Package
Rating Datasets
Stratified DIF Variance
DIF Variance
Simulation of a Dirichlet Distributed Vectors
Equating in the Generalized Logistic Rasch Model
Clustering for Continuous Fuzzy Data
Fitting the ISOP and ADISOP Model for Frequency Tables
Functional Unidimensional Item Response Model
Comparing Regression Parameters of Different lavaan Models Fitted to the
Same Dataset
Computation of Eigenvalues of Many Symmetric Matrices
Jackknife Equating Error in Generalized Logistic Rasch Model
Estimation of a Discrete Distribution for Fuzzy Data (Data in Belief Function
Framework)
Grade of Membership Model (Joint Maximum Likelihood Estimation)
latent.regression.em.raschtype
Latent Regression Model for the Generalized
Logistic Item Response Model and the Linear Model for Normal Responses
Converting a lavaan
Model into a mirt
Model
Fit Unidimensional ISOP and ADISOP Model to Dichotomous
and Polytomous Item Responses
Alignment Procedure for Linking under Approximate Invariance
Reliability for Dichotomous Item Response Data
Using the Method of Green and Yang (2009)
Discrete (Rasch) Grade of Membership Model
Scoring Persons and Items in the ISOP Model
Testing the ISOP Model
Permutation Test for a Local Structural Equation Model
Linking in the 2PL/Generalized Partial Credit Model
Haebara Linking of the 2PL Model for Multiple Studies
Robust Linking of Item Intercepts
Fit of a \(L_q\) Regression Model
Least Squares Distance Method of Cognitive Validation
Test a Local Structural Equation Model Based on Bootstrap
Local Structural Equation Models (LSEM)
Latent Class Model for Two Exchangeable Raters and One Item
Adjustment and Approximation of Individual Likelihood Functions
marginal.truescore.reliability
True-Score Reliability for Dichotomous Data
Some Methods for Objects of Class mcmc.list
Some Matrix Functions
MCMC Estimation of the Hierarchical IRT Model for Criterion-Referenced
Measurement
Computation of Descriptive Statistics for a mcmc.list
Object
Computation of the Rhat Statistic from a Single MCMC Chain
MCMC Estimation of the Two-Parameter Normal Ogive Item Response Model
3PNO Testlet Model
Write Coda File from an Object of Class mcmc.list
NOHARM Model in R
Monotone Regression for Rows or Columns in a Matrix
Functions for the Nedelsky Model
Nonparametric Estimation of Item Response Functions
Specify or modify a Parameter Table in mirt
Some Functions for Wrapping with the mirt Package
Item and Person Fit Statistics for the Partial Credit Model
Conversion of the Parameterization of the Partial Credit Model
Includes Confidence Interval in Parameter Summary Table
Random Item Response Model / Multilevel IRT Model
person.parameter.rasch.copula
Person Parameter Estimation of the Rasch Copula Model (Braeken, 2011)
Estimation of Multiple-Group Structural Equation Models
Response Pattern in a Binary Matrix
Bias Correction of Item Parameters for Joint Maximum Likelihood Estimation
in the Rasch model
Person Fit Statistics for the Rasch Model
Maximum Likelihood Estimation of Person or Group Parameters
in the Generalized Partial Credit Model
Jackknifing the IRT Model Estimated by Joint Maximum Likelihood (JML)
Cumulative Function for the Bivariate Normal Distribution
Calculation of Quasi Monte Carlo Integration Points
Multidimensional IRT Copula Model
Assessing Model Fit and Local Dependence by Comparing Observed and Expected
Item Pair Correlations
Plot Function for Objects of Class mcmc.sirt
Plot Method for Object of Class np.dich
Calculation of Probabilities and Moments for the
Generalized Logistic Item Response Model
Estimation of the Partial Credit Model using the Eigenvector Method
Proportional Reduction of Mean Squared
Error (PRMSE) for Subscale Scores
Joint Maximum Likelihood (JML) Estimation of the Rasch Model
Probabilistic Guttman Model
plausible.value.imputation.raschtype
Plausible Value Imputation in Generalized Logistic Item
Response Model
Pairwise Marginal Likelihood Estimation for the Probit Rasch Model
PROX Estimation Method for the Rasch Model
Creates Group-Wise Item Response Dataset
Inverse Gamma Distribution in Prior Sample Size Parameterization
Pairwise Estimation Method of the Rasch Model
Multidimensional Latent Class 1PL and 2PL Model
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
rasch.pairwise.itemcluster
Pairwise Estimation of the Rasch Model for Locally Dependent Items
Polychoric Correlation
Parsing a Prior Model
Estimation of the Rasch Model with Variational Approximation
Estimation of Reliability for Confirmatory Factor Analyses
Based on Dichotomous Data
Defunct sirt Functions
tools:::Rd_package_title("sirt")
Multidimensional Noncompensatory, Compensatory and Partially
Compensatory Item Response Model
stratified.cronbach.alpha
Stratified Cronbach's Alpha
Simulation of the Rasch Model with Locally Dependent Responses
Rater Facets Models with Item/Rater Intercepts and Slopes
Hierarchical Rater Model Based on Signal Detection Theory (HRM-SDT)
Summary Method for Objects of Class mcmc.sirt
Converting a fitted TAM
Object into a mirt
Object
Statistical Implicative Analysis (SIA)
Simulate from Generalized Logistic Item Response Model
Simulation of a Multivariate Normal Distribution with Exact Moments
xxirt_createThetaDistribution
Creates a User Defined Theta Distribution
Conversion of Trait Scores \(\theta\) into
True Scores \(\tau ( \theta )\)
Scaling of Group Means and Standard Deviations
Simulate from Ramsay's Quotient Model
Weighted Likelihood Estimation of Person Abilities
Standard Error Estimation of WLE by Jackknifing
Marginal Item Parameters from a Testlet (Bifactor) Model
Tetrachoric Correlation Matrix
Utility Functions in sirt
First Eigenvalues of a Symmetric Matrix
Test for Unidimensionality of CSN
User Defined Item Response Model
Create Item Response Functions and Item Parameter Table