Marginal Maximum Likelihood Estimation for Item Response Models

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Documentation for package ‘IRTC’ version 1.1.1

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IRTC-package Marginal Maximum Likelihood Estimation for Item Response Models
anova.irtc Marginal Maximum Likelihood Estimation of Fixed-Slope Item Response Models
data.gpcm Simulated Polytomous Item Response Data
data.mc Simulated Multiple-Choice Item Response Data
data.sim.rasch Simulated Dichotomous Rasch Data
IRTC Marginal Maximum Likelihood Estimation for Item Response Models
irtc One-Stop Item Response Model Estimation
irtc.mml Marginal Maximum Likelihood Estimation of Fixed-Slope Item Response Models
irtc.mml.2pl Marginal Maximum Likelihood Estimation of Slope (Discrimination) Item Response Models
irtc_align_q Read a Q Matrix from a File and Align It with the Response Data
irtc_check_data Pre-Estimation Data Diagnostics
irtc_ctt Classical Test Theory Item Statistics
irtc_excel Export Three Excel Result Workbooks
irtc_itemfit Item Fit Statistics (Infit and Outfit)
irtc_json Machine-Readable Results with a Stable Schema
irtc_lang Output Language of the IRTC Usability Layer
irtc_param_table Export Three Excel Result Workbooks
irtc_person_table Export Three Excel Result Workbooks
irtc_quality Plain-Language Item Quality Ratings
irtc_quality_thresholds Plain-Language Item Quality Ratings
irtc_read Read and Clean Item Response Data from Many Formats
irtc_read_q Read a Q Matrix from a File and Align It with the Response Data
irtc_report Generate a Word or HTML Analysis Report
irtc_results Machine-Readable Results with a Stable Schema
irtc_score Score Raw Responses with an Answer Key or Scoring Rules
logLik.irtc Marginal Maximum Likelihood Estimation of Fixed-Slope Item Response Models
plain_summary Plain-Language Layered Summary of a Fitted Model
plot.irtc Diagnostic Plots for Fitted Item Response Models
print.irtc Marginal Maximum Likelihood Estimation of Fixed-Slope Item Response Models
print.irtc_check Pre-Estimation Data Diagnostics
print.irtc_ctt Classical Test Theory Item Statistics
print.irtc_data Read and Clean Item Response Data from Many Formats
print.irtc_itemfit Item Fit Statistics (Infit and Outfit)
print.irtc_qmatrix Read a Q Matrix from a File and Align It with the Response Data
print.irtc_quality Plain-Language Item Quality Ratings
print.irtc_results Machine-Readable Results with a Stable Schema
summary.irtc Marginal Maximum Likelihood Estimation of Fixed-Slope Item Response Models