sirt: Supplementary Item Response Theory Models
    Supplementary functions for item response models aiming
    to complement existing R packages. The functionality includes among others
    multidimensional compensatory and noncompensatory IRT models
    (Reckase, 2009, <doi:10.1007/978-0-387-89976-3>), 
    MCMC for hierarchical IRT models and testlet models
    (Fox, 2010, <doi:10.1007/978-1-4419-0742-4>), 
    NOHARM (McDonald, 1982, <doi:10.1177/014662168200600402>), 
    Rasch copula model (Braeken, 2011, <doi:10.1007/s11336-010-9190-4>;
    Schroeders, Robitzsch & Schipolowski, 2014, <doi:10.1111/jedm.12054>),
    faceted and hierarchical rater models (DeCarlo, Kim & Johnson, 2011,
    <doi:10.1111/j.1745-3984.2011.00143.x>),
    ordinal IRT model (ISOP; Scheiblechner, 1995, <doi:10.1007/BF02301417>), 
    DETECT statistic (Stout, Habing, Douglas & Kim, 1996, 
    <doi:10.1177/014662169602000403>), local structural equation modeling 
    (LSEM; Hildebrandt, Luedtke, Robitzsch, Sommer & Wilhelm, 2016,
    <doi:10.1080/00273171.2016.1142856>).
| Version: | 4.2-133 | 
| Depends: | R (≥ 3.5) | 
| Imports: | CDM, graphics, methods, parallel, pbapply, Rcpp, stats, TAM, utils | 
| LinkingTo: | pbv, Rcpp, RcppArmadillo | 
| Suggests: | coda, igraph, lavaan, MASS, Matrix, miceadds, minqa, mirt, mvtnorm, nloptr, optimx, pbivnorm, pbv, psych, sfsmisc, sm, survey | 
| Published: | 2025-09-27 | 
| DOI: | 10.32614/CRAN.package.sirt | 
| Author: | Alexander Robitzsch  [aut, cre] | 
| Maintainer: | Alexander Robitzsch  <robitzsch at ipn.uni-kiel.de> | 
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] | 
| URL: | https://github.com/alexanderrobitzsch/sirt,
https://sites.google.com/view/alexander-robitzsch/software | 
| NeedsCompilation: | yes | 
| Citation: | sirt citation info | 
| Materials: | README, NEWS | 
| In views: | Psychometrics | 
| CRAN checks: | sirt results | 
Documentation:
Downloads:
Reverse dependencies:
| Reverse depends: | subscore | 
| Reverse imports: | cdmTools, cypress, discnorm, FAfA, GRShiny, immer, LAM, mdmb, MLEce, STARTS | 
| Reverse suggests: | dextergui, LSAmitR, miceadds, mirt, shortIRT | 
| Reverse enhances: | mnlfa | 
Linking:
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