Multidimensional Scaling of Asymmetric Proximities
Automated Test Assembly
Elimination-by-Aspects Models
Bayesian Latent Class Analysis
Functions for Working with Two- And Four-Parameter Beta Probability Di...
Psychometric Mixture Models
The R Package for "The Basics of Item Response Theory Using R"
Independent Component Analysis
Bradley-Terry Models
Modelling Heterogeneity in Paired Comparison Data
Simple, Multiple and Joint Correspondence Analysis
Bootstrap Confidence Regions for Simple and Multiple Correspondence An...
Classification Accuracy and Consistency under Item Response Theory
Generation of IRT Response Patterns under Computerized Adaptive Testin...
Correspondence Analysis Variants
SIMulated Structural Equation Modeling
Item Response Theory Demo Collection
Clustering of Variables Around Latent Variables
Canonical Non-Symmetrical Correspondence Analysis in R
Comparing Correlations
Statistical Comparisons of Two or more Alpha Coefficients
Classical Test Theory Functions
Classical Test Theory via Shiny
Data Analysis and Knowledge Spaces
A Graphical User Interface for Dexter
Differential Functioning of Items and Tests
Detection of Differential Item Functioning (DIF) in Rasch Models by Bo...
Multilevel Mantel-Haenszel Statistics for Differential Item Functionin...
Item Focussed Trees for the Identification of Items in Differential It...
DIF and DDF Detection by Non-Linear Regression Models
A Penalty Approach to Differential Item Functioning in Rasch Models
Linear Regressions with a Latent Outcome Variable
DiSTATIS Three Way Metric Multidimensional Scaling
Gifi Methods for Optimal Scaling
Misc Functions of the Department of Statistics, Probability Theory Gro...
Dissimilarity-Based Functions for Ecological Analysis
Toolkit for Electroencephalography Data
Stan Models for Item Response Theory
Utility Functions for Exploratory Factor Analysis
Elastic-Net for Sparse Estimation and Sparse PCA
Observed-Score Linking and Equating
Equating of Multiple Forms
Calibrating Parameters for the Samejima's Continuous IRT Model
Perform the Joint Graphical Lasso and Selects Tuning Parameters
Exploratory Analysis with the Singular Value Decomposition
Fechnerian Scaling of Discrete Object Sets
Graphical Lasso: Estimation of Gaussian Graphical Models
Support Functions and Datasets for Venables and Ripley's MASS
Latent Trait Models under IRT
Multivariate Analysis with Optimal Scaling
Gradient Projection Factor Rotation
Differential Item Functioning in Generalized Partial Credit Models
Graphical VAR for Experience Sampling Data
Structure Optimized Proximity Scaling
Item Analysis in Rasch Models
Facilitating Estimation of the Intraclass Correlation Coefficient
Toolkit for Item Factor Analysis with 'OpenMx'
Item Response Models for Multiple Ratings
Case Influence in Structural Equation Models
Various Coefficients of Interrater Reliability and Agreement
A Collection of Functions Related to Item Response Theory (IRT)
Estimation of Tree-Based Item Response Models
Item Response Theory via Shiny
Fitting Ising Models Using the ELasso Method
The Kernel Method of Test Equating
Knowledge Space Theory
Ordination and Multivariate Analysis for Ecology
Draws Diagrams Useful for Checking Latent Scales
Import Output from LISREL into R
LogNormal Response Time Item Response Theory Models
Logistic Ordinal Regression Differential Item Functioning using IRT
Latent Structure Learning
Semi-Confirmatory Structural Equation Modeling via Penalized Likelihoo...
Latent Variable Network Modeling
Multiple Administrations Adaptive Testing
Optimal Test Design Approach to Fixed and Adaptive Test Construction
Multiple Correspondence Analysis Variants
Flexible Mediation Analysis Using Natural Effect Models
Estimating Time-Varying k-Order Mixed Graphical Models
Model Implied Instrumental Variable (MIIV) Estimation of Structural Eq...
Handling Missing Values with Multivariate Data Analysis
Bayesian Latent Variable Analysis
Maximum Likelihood Difference Scaling
Multi-Level Vector Autoregression
Analyze Multinomial Processing Tree Models
Multinomial Processing Tree Models
Multiple UniDimensional unFOLDing
Multidimensional Latent Class Item Response Theory Models
Metric Unfolding
Statistical Comparison of Two Networks Based on Several Invariance Mea...
Tools for Identifying Important Nodes in Networks
Recursive Partitioning of Network Models
Parallel Analysis and Other Non Graphical Solutions to the Cattell Scr...
Fitting Structural Equation Mixture Models
Non-Negative and Sparse PCA
Ordinal Higher-Order Exploratory General Diagnostic Model for Polytomo...
Rasch Model Parameters by Pairwise Algorithm
Horn's Test of Principal Components/Factors
Stan Models for the Paired Comparison Factor Model
IRT Models for Polytomous and Continuous Item Responses
Model Response Styles in Partial Credit Models
Probabilistic Knowledge Structures
Estimate (Generalized) Linear Mixed Models with Factor Structures
Polychoric and Polyserial Correlations
Graphing Nonlinear Relations Among Latent Variables from Structural Eq...
Polytomous Variable Latent Class Analysis
Person Parameter Estimation
Utilities to Fit Paired Comparison Models for Preferences
Response Probability Functions
Recursive Partitioning for Structural Equation Models
Tools to Accompany the 'psych' Package for Psychological Research
Test Analysis Modules
Supplementary Item Response Theory Models
Political Science Computational Laboratory
Rasch Sampler
Robust Structural Equation Modeling with Missing Data and Auxiliary Va...
Functions for Analyzing Psychophysical Data in R
Weighted Correlations
Sparse Latent Class Model for Cognitive Diagnosis
Regularized Structural Equation Modeling
Hierarchical Multinomial Processing Tree Modeling
Principal Tensor Analysis on k Modes
Estimating Systems of Simultaneous Equations
Linking Patient-Reported Outcomes Measures
R/EQS Interface
A Tool for Sensitivity Analysis in Structural Equation Modeling
Beta Regression
Path Diagrams and Visual Analysis of Various SEM Packages' Output
Computing Subscores in Classical Test Theory and Item Response Theory
Functions for the STARTS Model
Continuous Norming
Social Relation Model (SRM) Analyses for Single or Multiple Groups
Various Procedures Used in Psychometrics
Structural Equation Models
Easily Carry Out Latent Profile Analysis (LPA) Using Open-Source or Co...
Missing Item Responses Imputation for Test and Assessment Data
An R Package for Facilitating Large-Scale Latent Variable Analyses in ...
Sampling Methods and Distribution Functions for the Ising Model
Data Analysis and Parameter Estimation Using Item Response Theory
Fits Psychometric Functions for Multiple Groups
Item Response Theory and Computer-Based Testing in R
Quantifying Construct Validity
Structural Equation Multidimensional Scaling
Profile Analysis of Multivariate Data in R
GUI for Entering Test Items and Obtaining Raw and Transformed Scores
Statistical Power Simulation for Testing the Rasch Model
Three-Way Component Analysis
Recursive Partitioning Based on Psychometric Models
Landscape Construction and Simulation for Ising Networks
Item Response Theory Modeling and Scoring for Judgment Data
Fit Vector Fields and Potential Landscapes from Intensive Longitudinal...
Latent (Variable) Analysis with Bayesian Learning
Composite-Based Structural Equation Modeling
Data Sets for Psychometric Modeling
The Generalized DINA Model Framework
Bayesian Estimation of an Exploratory Deterministic Input, Noisy and G...
Exploratory Reduced Reparameterized Unified Model Estimation
Bayesian 4 Parameter Item Response Model
Bayesian Estimation of DINA Model
Multilevel Model Intraclass Correlation for Slope Heterogeneity
Thurstonian IRT Models
Simulation of Diffusion Processes
Latent Variable Models
Cluster Optimized Proximity Scaling
Bayesian Estimation of the Reduced Reparameterized Unified Model with ...
Simulate Cognitive Diagnostic Model ('CDM') Data
Useful Tools for Structural Equation Modeling
Conducts Mokken Scale Analysis
Biplot of Multivariate Data Based on Principal Components Analysis
Linear and Nonlinear Mixed Effects Models
Simple and Canonical Correspondence Analysis
A General Framework for Multivariate Analysis with Optimal Scaling
IRT Item-Person Map with 'ConQuest' Integration
Random Effects Latent Class Analysis
Bayesian Inference for Factor Modeling
Piecewise Structural Equation Modeling
Latent Variable Analysis
Tidy Structural Equation Modeling
Meta-Analysis using Structural Equation Modeling
Optimal Scaling
Psychometric Modeling Infrastructure
Visualizing Generalized Canonical Discriminant and Canonical Correlati...
MCMC Generalised Linear Mixed Models
Estimates and Plots Single-Level and Multilevel Latent Class Models
Group Iterative Multiple Model Estimation
Descriptive 3D Multidimensional Item Response Theory Modelling
Collection of Methods to Detect Dichotomous and Polytomous Differentia...
Visualizing Hypothesis Tests in Multivariate Linear Models
Multidimensional Item Response Theory
Extended Structural Equation Modelling
Data Management and Analysis of Tests
Co-Correspondence Analysis Methods
Computerized Adaptive Testing with Multidimensional Item Response Theo...
Some Latent Variable Models
Multidimensional Scaling
Structural Equation Modeling and Confirmatory Network Analysis
An R Package to Extend 'ACER ConQuest'
IRT Equating Methods
Partial Least Squares and Principal Component Regression
Robust PCA by Projection Pursuit
Community Ecology Package
Regression Models for Ordinal Data
Causal Mediation Analysis
FastICA Algorithms to Perform ICA and Projection Pursuit
Simulation-Based Landscape Construction for Dynamical Systems
Vector Generalized Linear and Additive Models
Test and Item Analysis via Shiny
Analysis of Ecological Data: Exploratory and Euclidean Methods in Envi...
Flexible Multidimensional Scaling and 'smacof' Extensions
Markov Chain Monte Carlo (MCMC) Package
Statistical Tools for the Analysis of Psychophysical Data
Flexible Mixture Modeling
Procedures for Psychological, Psychometric, and Personality Research
Extended Rasch Modeling
Linear Mixed-Effects Models using 'Eigen' and S4
Influential Case Detection Methods for Factor Analysis and Structural ...
Latent Class Item Response Theory (LC-IRT) Models under Within-Item Mu...
Exploratory Graph Analysis – a Framework for Estimating the Number of ...
Bayesian Analysis of Finite Mixture of Plackett-Luce Models
Component Models for Multi-Way Data
Cognitive Diagnosis Modeling
Multivariate Exploratory Data Analysis and Data Mining
Sensory Data Analysis