# Psychometrics

More info on CRANName | Description | Percentile | Stars |

ade4 | Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences | 0th | |

anacor | Simple and Canonical Correspondence Analysis | 0th | |

betareg | Beta Regression | 0th | |

BiplotGUI | Interactive Biplots in R | 0th | |

blavaan | Bayesian Latent Variable Analysis | 0th | |

bpca | Biplot of Multivariate Data Based on Principal Components Analysis | 0th | |

BradleyTerry2 | Bradley-Terry Models | 0th | |

ca | Simple, Multiple and Joint Correspondence Analysis | 0th | |

cacIRT | Classification Accuracy and Consistency under Item Response Theory | 0th | |

catR | Generation of IRT Response Patterns under Computerized Adaptive Testing | 0th | |

CDM | Cognitive Diagnosis Modeling | 0th | |

classify | Classification Accuracy and Consistency under IRT models. | 0th | |

CMC | Cronbach-Mesbah Curve | 0th | |

cocorresp | Co-Correspondence Analysis Methods | 0th | |

cocron | Statistical Comparisons of Two or more Alpha Coefficients | 0th | |

CopyDetect | Computing Response Similarity Indices for Multiple-Choice Tests | 0th | |

CTT | Classical Test Theory Functions | 0th | |

DAKS | Data Analysis and Knowledge Spaces | 0th | |

DFIT | Differential Functioning of Items and Tests | 0th | |

DIFlasso | A Penalty Approach to Differential Item Functioning in Rasch Models | 0th | |

difR | Collection of Methods to Detect Dichotomous Differential Item Functioning (DIF) | 0th | |

dualScale | Dual Scaling Analysis of Multiple Choice Data | 0th | |

e1071 | Misc Functions of the Department of Statistics, Probability Theory Group (Formerly: E1071), TU Wien | 0th | |

eba | Elimination-by-Aspects Models | 0th | |

ecodist | Dissimilarity-Based Functions for Ecological Analysis | 0th | |

equate | Observed-Score Linking and Equating | 0th | |

equateIRT | IRT Equating Methods | 0th | |

eRm | Extended Rasch Modeling | 0th | |

EstCRM | Calibrating Parameters for the Samejima's Continuous IRT Model | 0th | |

ExPosition | Exploratory Analysis with the Singular Value Decomposition | 0th | |

FactoMineR | Multivariate Exploratory Data Analysis and Data Mining | 0th | |

FAiR | Factor Analysis in R | 0th | |

fastICA | FastICA Algorithms to Perform ICA and Projection Pursuit | 0th | |

fechner | Fechnerian Scaling of Discrete Object Sets | 0th | |

flexmix | Flexible Mixture Modeling | 0th | |

fwdmsa | Forward search for Mokken scale analysis | 0th | |

GPArotation | GPA Factor Rotation | 0th | |

homals | Gifi Methods for Optimal Scaling | 0th | |

ICC | Facilitating Estimation of the Intraclass Correlation Coefficient | 0th | |

irr | Various Coefficients of Interrater Reliability and Agreement | 0th | |

irtoys | A Collection of Functions Related to Item Response Theory (IRT) | 0th | |

irtProb | Utilities and Probability Distributions Related to Multidimensional Person Item Response Models | 0th | |

irtrees | Estimation of Tree-Based Item Response Models | 0th | |

IRTShiny | Item Response Theory via Shiny | 0th | |

kcirt | k-Cube Thurstonian IRT Models | 0th | |

kequate | The Kernel Method of Test Equating | 0th | |

KernSmoothIRT | Nonparametric Item Response Theory | 0th | |

kst | Knowledge Space Theory | 0th | |

labdsv | Ordination and Multivariate Analysis for Ecology | 0th | |

latdiag | Draws Diagrams Useful for Checking Latent Scales | 0th | |

lava | Latent Variable Models | 0th | |

lava.tobit | Latent Variable Models with Censored and Binary Outcomes | 0th | |

lavaan | Latent Variable Analysis | 0th | |

lavaan.survey | Complex Survey Structural Equation Modeling (SEM) | 0th | |

lme4 | Linear Mixed-Effects Models using 'Eigen' and S4 | 0th | |

lordif | Logistic Ordinal Regression Differential Item Functioning using IRT | 0th | |

ltm | Latent Trait Models under IRT | 0th | |

MASS | Support Functions and Datasets for Venables and Ripley's MASS | 0th | |

MBESS | The MBESS R Package | 0th | |

mcIRT | IRT models for multiple choice items (mcIRT) | 0th | |

MCMCglmm | MCMC Generalised Linear Mixed Models | 0th | |

MCMCpack | Markov Chain Monte Carlo (MCMC) Package | 0th | |

medflex | Flexible Mediation Analysis Using Natural Effect Models | 0th | |

mediation | Causal Mediation Analysis | 0th | |

metaSEM | Meta-Analysis using Structural Equation Modeling | 0th | |

mirt | Multidimensional Item Response Theory | 0th | |

mirtCAT | Computerized Adaptive Testing with Multidimensional Item Response Theory | 0th | |

missMDA | Handling Missing Values with Multivariate Data Analysis | 0th | |

mixRasch | Mixture Rasch Models with JMLE | 0th | |

MLCM | Maximum Likelihood Conjoint Measurement | 0th | |

MLDS | Maximum Likelihood Difference Scaling | 0th | |

modelfree | Model-free estimation of a psychometric function | 0th | |

mokken | Conducts Mokken Scale Analysis | 0th | |

MplusAutomation | An R Package for Facilitating Large-Scale Latent Variable Analyses in Mplus | 0th | |

mpt | Multinomial Processing Tree Models | 0th | |

MPTinR | Analyze Multinomial Processing Tree Models | 0th | |

mRm | An R Package for Conditional Maximum Likelihood Estimation in Mixed Rasch Models | 0th | |

MultiLCIRT | Multidimensional Latent Class Item Response Theory Models | 0th | |

multiplex | Algebraic Tools for the Analysis of Multiple Social Networks | 0th | |

nFactors | Parallel Analysis and Non Graphical Solutions to the Cattell Scree Test | 0th | |

nlme | Linear and Nonlinear Mixed Effects Models | 0th | |

nlsem | Fitting Structural Equation Mixture Models | 0th | |

OpenMx | Extended Structural Equation Modelling | 0th | |

ordinal | Regression Models for Ordinal Data | 0th | |

pairwise | Rasch Model Parameters by Pairwise Algorithm | 0th | |

pathmox | Pathmox Approach of Segmentation Trees in Partial Least Squares Path Modeling | 0th | |

pcaPP | Robust PCA by Projection Pursuit | 0th | |

pcIRT | IRT Models for Polytomous and Continuous Item Responses | 0th | |

pks | Probabilistic Knowledge Structures | 0th | |

plRasch | Log Linear by Linear Association models and Rasch family models by pseudolikelihood estimation | 0th | |

pls | Partial Least Squares and Principal Component Regression | 0th | |

plspm | Tools for Partial Least Squares Path Modeling (PLS-PM) | 0th | |

poLCA | Polytomous variable Latent Class Analysis | 0th | |

polycor | Polychoric and Polyserial Correlations | 0th | |

PP | Person Parameter Estimation | 0th | |

prefmod | Utilities to Fit Paired Comparison Models for Preferences | 0th | |

profileR | Profile Analysis of Multivariate Data in R | 0th | |

pscl | Political Science Computational Laboratory | 0th | |

psy | Various procedures used in psychometry | 0th | |

psych | Procedures for Psychological, Psychometric, and Personality Research | 0th | |

psychometric | Applied Psychometric Theory | 0th | |

psychomix | Psychometric Mixture Models | 0th | |

psychotools | Psychometric Modeling Infrastructure | 0th | |

psychotree | Recursive Partitioning Based on Psychometric Models | 0th | |

psyphy | Functions for analyzing psychophysical data in R | 0th | |

PTAk | Principal Tensor Analysis on k Modes | 0th | |

pwrRasch | Statistical Power Simulation for Testing the Rasch Model | 0th | |

qgraph | Graph Plotting Methods, Psychometric Data Visualization and Graphical Model Estimation | 0th | |

QuantPsyc | Quantitative Psychology Tools | 0th | |

quickpsy | Fits Psychometric Functions for Multiple Groups | 0th | |

randomLCA | Random Effects Latent Class Analysis | 0th | |

RaschSampler | Rasch Sampler | 0th | |

REQS | R/EQS Interface | 0th | |

rpf | Response Probability Functions | 0th | |

sem | Structural Equation Models | 0th | |

SEMModComp | Model Comparisons for SEM | 0th | |

semPlot | Path Diagrams and Visual Analysis of Various SEM Packages' Output | 0th | |

semPLS | Structural Equation Modeling Using Partial Least Squares | 0th | |

semTools | Useful Tools for Structural Equation Modeling | 0th | |

SensoMineR | Sensory Data Analysis | 0th | |

simsem | SIMulated Structural Equation Modeling | 0th | |

sirt | Supplementary Item Response Theory Models | 0th | |

smacof | Multidimensional Scaling | 0th | |

SNSequate | Standard and Nonstandard Statistical Models and Methods for Test Equating | 0th | |

systemfit | Estimating Systems of Simultaneous Equations | 0th | |

TAM | Test Analysis Modules | 0th | |

TestScorer | GUI for Entering Test Items and Obtaining Raw and Transformed Scores | 0th | |

TripleR | Social Relation Model (SRM) Analyses for Single or Multiple Groups | 0th | |

vegan | Community Ecology Package | 0th | |

VGAM | Vector Generalized Linear and Additive Models | 0th | |

wCorr | Weighted Correlations | 0th | |

WrightMap | IRT Item-Person Map with 'ConQuest' Integration | 0th | |

xgobi | Interface to the XGobi and XGvis programs for graphical data analysis | 0th | |

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