Package: IRTest 2.1.0

Seewoo Li

IRTest: Parameter Estimation of Item Response Theory with Estimation of Latent Distribution

Item response theory (IRT) parameter estimation using marginal maximum likelihood and expectation-maximization algorithm (Bock & Aitkin, 1981 <doi:10.1007/BF02293801>). Within parameter estimation algorithm, several methods for latent distribution estimation are available. Reflecting some features of the true latent distribution, these latent distribution estimation methods can possibly enhance the estimation accuracy and free the normality assumption on the latent distribution.

Authors:Seewoo Li [aut, cre, cph]

IRTest_2.1.0.tar.gz
IRTest_2.1.0.zip(r-4.5)IRTest_2.1.0.zip(r-4.4)IRTest_2.1.0.zip(r-4.3)
IRTest_2.1.0.tgz(r-4.5-any)IRTest_2.1.0.tgz(r-4.4-any)IRTest_2.1.0.tgz(r-4.3-any)
IRTest_2.1.0.tar.gz(r-4.5-noble)IRTest_2.1.0.tar.gz(r-4.4-noble)
IRTest_2.1.0.tgz(r-4.4-emscripten)IRTest_2.1.0.tgz(r-4.3-emscripten)
IRTest.pdf |IRTest.html
IRTest/json (API)
NEWS

# Install 'IRTest' in R:
install.packages('IRTest', repos = c('https://seewooli.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/seewooli/irtest/issues

On CRAN:

Conda:

5.04 score 2 stars 8 scripts 246 downloads 19 exports 55 dependencies

Last updated 1 months agofrom:a930f1967a. Checks:1 OK, 8 WARNING. Indexed: yes.

TargetResultLatest binary
Doc / VignettesOKMar 24 2025
R-4.5-winWARNINGMar 24 2025
R-4.5-macWARNINGMar 24 2025
R-4.5-linuxWARNINGMar 24 2025
R-4.4-winWARNINGMar 24 2025
R-4.4-macWARNINGMar 24 2025
R-4.4-linuxWARNINGMar 24 2025
R-4.3-winWARNINGMar 24 2025
R-4.3-macWARNINGMar 24 2025

Exports:adaptive_testbest_modelcat_clpscoef_seDataGenerationdist2factor_scoreinform_f_iteminform_f_testIRTest_ContIRTest_DichIRTest_MixIRTest_Polyitem_fitlatent_distributionoriginal_par_2GMplot_itemrecategorizereliability

Dependencies:askpassbetafunctionsclicliprcolorspacecrayoncredentialscurldcurverdescfansifarverfsgertggplot2ghgitcredsgluegtablehttr2iniisobandjsonlitelabelinglatticelifecyclemagrittrMASSMatrixmgcvmunsellnlmeopensslpillarpkgconfigpurrrR6rappdirsRColorBrewerRcppRcppArmadillorlangrprojrootrstudioapiscalessystibbleusethisutf8vctrsviridisLitewhiskerwithryamlzip

IRT without the normality assumption

Rendered fromvignette_for_IRTest.Rmdusingknitr::rmarkdownon Mar 24 2025.

Last update: 2024-05-31
Started: 2022-07-27