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