{ "_id": "6a25876b794753ddbc3de16d", "Package": "irtQ", "Type": "Package", "Title": "Unidimensional Item Response Theory Modeling", "Version": "1.1.0", "Description": "Fit unidimensional item response theory (IRT) models to\ntest data, which includes both dichotomous and polytomous\nitems, calibrate pretest item parameters, estimate examinees'\nabilities, and examine the IRT model-data fit on item-level in\ndifferent ways as well as provide useful functions related to\nIRT analyses such as IRT model-data fit evaluation and\ndifferential item functioning analysis. The bring.flexmirt()\nand write.flexmirt() functions were written by modifying the\nread.flexmirt() function (Pritikin & Falk (2022)\n). The bring.bilog() and\nbring.parscale() functions were written by modifying the\nread.bilog() and read.parscale() functions, respectively (Weeks\n(2010) ). The bisection() function\nwas written by modifying the bisection() function (Howard\n(2017, ISBN:9780367657918)). The code of the inverse test\ncharacteristic curve scoring in the est_score() function was\nwritten by modifying the irt.eq.tse() function (González (2014)\n). In est_score() function, the code\nof weighted likelihood estimation method was written by\nreferring to the Pi(), Ji(), and Ii() functions of the catR\npackage (Magis & Barrada (2017) ).", "License": "GPL (>= 2)", "Encoding": "UTF-8", "LazyData": "true", "Authors@R": "c(person(\"Hwanggyu\", \"Lim\", email=\"hglim83@gmail.com\", role=c(\"aut\", \"cre\")), \nperson(\"Craig S.\", \"Wells\", email=\"cswells@educ.umass.edu\", role=\"ctb\"),\nperson(\"James\", \"Howard\", email=\"jh@jameshoward.us\", role=\"ctb\"),\nperson(\"Joshua\", \"Pritikin\", email=\"jpritikin@pobox.com\", role=\"ctb\"),\nperson(\"Jonathan P\", \"Weeks\", email=\"weeksjp@gmail.com\", role=\"ctb\"),\nperson(\"Jorge\", \"González\", email=\"jgonzale@mat.puc.cl\", role=\"ctb\"),\nperson(\"David\", \"Magis\", email=\"david.magis@uliege.be\", role=\"ctb\")\n)", "Config/testthat/edition": "3", "RoxygenNote": "7.3.2", "Roxygen": "list(markdown = TRUE)", "URL": "https://hwangQ.github.io/irtQ/, https://github.com/hwangQ/irtQ", "BugReports": "https://github.com/hwangQ/irtQ/issues", "Config/pak/sysreqs": "cmake make libicu-dev libuv1-dev libx11-dev", "Repository": "https://hwangq.r-universe.dev", "Date/Publication": "2026-06-07 13:26:40 UTC", "RemoteUrl": "https://github.com/hwangq/irtq", "RemoteRef": "HEAD", "RemoteSha": "d2f53970e7d6f37692a83f590bf5ae5e88744932", "NeedsCompilation": "no", "Packaged": { "Date": "2026-06-07 14:54:46 UTC", "User": "root" }, "Author": "Hwanggyu Lim [aut, cre],\nCraig S. Wells [ctb],\nJames Howard [ctb],\nJoshua Pritikin [ctb],\nJonathan P Weeks [ctb],\nJorge González [ctb],\nDavid Magis [ctb]", "Maintainer": "Hwanggyu Lim ", "MD5sum": "7b4067713e683392d94547cbfadab312", "_user": "hwangq", "_type": "src", "_file": "irtQ_1.1.0.tar.gz", "_fileid": "b19d462a62ead049576bb30001ceb9e01d42d791fffa90f96ef76ec5900aeb0c", "_filesize": 2811633, "_sha256": "b19d462a62ead049576bb30001ceb9e01d42d791fffa90f96ef76ec5900aeb0c", "_created": "2026-06-07T14:54:46.000Z", "_published": "2026-06-07T14:59:55.541Z", "_distro": "noble", "_jobs": [ { "job": 79968101887, "time": 239, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7465250230" }, { "job": 79968101873, "time": 244, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7465250743" }, { "job": 79968101893, "time": 160, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7465240672" }, { "job": 79968101886, "time": 208, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7465246457" }, { "job": 79967845609, "time": 231, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7465219670" }, { "job": 79968101861, "time": 155, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7465239837" }, { "job": 79968101909, "time": 256, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7465252284" }, { "job": 79968101904, "time": 200, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7465245412" }, { "job": 79968101896, "time": 218, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7465247613" } ], "_buildurl": "https://github.com/r-universe/hwangq/actions/runs/27095869236", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/hwangq/irtq", "_commit": { "id": "d2f53970e7d6f37692a83f590bf5ae5e88744932", "author": "Hwanggyu Lim ", "committer": "Hwanggyu Lim ", "message": "test: force BLAS/OpenMP threads to 1 at runtime via RhpcBLASctl\n\nSys.setenv() only constrains thread counts at library-load time, so add\na runtime call to RhpcBLASctl::omp_set_num_threads()/blas_set_num_threads()\nto guarantee single-threaded BLAS/OpenMP execution regardless of load order.\n", "time": 1780838800 }, "_maintainer": { "name": "Hwanggyu Lim", "email": "hglim83@gmail.com", "login": "hwangq", "linkedin": "in/hwanggyu-lim-4a9174145", "description": "", "uuid": 43680218 }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.4", "role": "Depends" }, { "package": "stats", "role": "Imports" }, { "package": "statmod", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "tibble", "role": "Imports" }, { "package": "dplyr", "role": "Imports" }, { "package": "purrr", "role": "Imports" }, { "package": "tidyr", "role": "Imports" }, { "package": "rlang", "role": "Imports" }, { "package": "reshape2", "role": "Imports" }, { "package": "janitor", "role": "Imports" }, { "package": "ggplot2", "role": "Imports" }, { "package": "gridExtra", "role": "Imports" }, { "package": "parallel", "role": "Imports" }, { "package": "Matrix", "role": "Imports" }, { "package": "Rfast", "role": "Imports" }, { "package": "mirt", "role": "Imports" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "pkgdown", "role": "Suggests" }, { "package": "RhpcBLASctl", "role": "Suggests" } ], "_owner": "hwangq", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2025-29", "n": 5 }, { "week": "2025-31", "n": 7 }, { "week": "2025-32", "n": 5 }, { "week": "2025-42", "n": 7 }, { "week": "2026-11", "n": 6 }, { "week": "2026-19", "n": 17 }, { "week": "2026-20", "n": 9 }, { "week": "2026-21", "n": 7 }, { "week": "2026-23", "n": 29 } ], "_tags": [], "_stars": 0, "_contributors": [ { "user": "hwangq", "count": 92, "uuid": 43680218 } ], "_userbio": { "uuid": 43680218, "type": "user", "name": "HWANGGYU LIM" }, "_downloads": { "count": 204, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/irtQ" }, "_devurl": "https://github.com/hwangq/irtq", "_pkgdown": "https://hwangQ.github.io/irtQ/", "_searchresults": 17, "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/irtQ.html", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md", "manual.pdf" ], "_homeurl": "https://github.com/hwangq/irtq", "_realowner": "hwangq", "_cranurl": true, "_releases": [ { "version": "0.1.0", "date": "2023-01-14" }, { "version": "0.1.1", "date": "2023-05-08" }, { "version": "0.2.0", "date": "2023-07-06" }, { "version": "0.2.1", "date": "2024-08-26" }, { "version": "1.0.0", "date": "2025-07-17" }, { "version": "1.1.0", "date": "2026-06-07" } ], "_exports": [ "bind.fill", "bisection", "bring.bilog", "bring.flexmirt", "bring.mirt", "bring.parscale", "cac_lee", "cac_rud", "catsib", "covirt", "crdif", "drm", "est_irt", "est_item", "est_mg", "est_score", "gen.weight", "getirt", "grdif", "info", "irtfit", "llike_score", "lwrc", "pcd2", "prm", "rdif", "reval_mst", "ripd", "run_flexmirt", "shape_df", "shape_df_fipc", "simdat", "summary", "sx2_fit", "traceline", "write.flexmirt" ], "_datasets": [ { "name": "LSAT6", "title": "LSAT6 Data", "object": "LSAT6", "class": [ "matrix", "array" ], "fields": [ "item.1", "item.2", "item.3", "item.4", "item.5" ], "rows": 1000, "table": true, "tojson": true }, { "name": "simCAT_DC", "title": "Simulated Single-Item Format CAT Data", "object": "simCAT_DC", "class": [ "list" ], "fields": [], "table": false, "tojson": true }, { "name": "simCAT_MX", "title": "Simulated Mixed-Item Format CAT Data", "object": "simCAT_MX", "class": [ "list" ], "fields": [], "table": false, "tojson": true }, { "name": "simMG", "title": "Simulated multiple-group data", "object": "simMG", "class": [ "list" ], "fields": [], "table": false, "tojson": true }, { "name": "simMST", "title": "Simulated 1-3-3 MST Panel Data", "object": "simMST", "class": [ "list" ], "fields": [], "table": false, "tojson": true } ], "_help": [ { "page": "bind.fill", "title": "Bind Fill", "topics": [ "bind.fill" ] }, { "page": "bisection", "title": "The Bisection Method to Find a Root", "topics": [ "bisection" ] }, { "page": "bring.flexmirt", "title": "Import Item and Ability Parameters from IRT Software", "topics": [ "bring.bilog", "bring.flexmirt", "bring.mirt", "bring.parscale" ] }, { "page": "cac_lee", "title": "Classification Accuracy and Consistency Using Lee's (2010) Approach", "topics": [ "cac_lee" ] }, { "page": "cac_rud", "title": "Classification Accuracy and Consistency Based on Rudner's (2001, 2005) Approach", "topics": [ "cac_rud" ] }, { "page": "catsib", "title": "CATSIB DIF Detection Procedure", "topics": [ "catsib" ] }, { "page": "covirt", "title": "Asymptotic Variance-Covariance Matrices of Item Parameter Estimates", "topics": [ "covirt" ] }, { "page": "crdif", "title": "Residual-Based DIF Detection Framework Using Categorical Residuals (RDIF-CR)", "topics": [ "crdif", "crdif.default", "crdif.est_irt", "crdif.est_item" ] }, { "page": "drm", "title": "Dichotomous Response Model (DRM) Probabilities", "topics": [ "drm" ] }, { "page": "est_irt", "title": "Item parameter estimation using MMLE-EM algorithm", "topics": [ "est_irt" ] }, { "page": "est_item", "title": "Fixed ability parameter calibration", "topics": [ "est_item" ] }, { "page": "est_mg", "title": "Multiple-group item calibration using MMLE-EM algorithm", "topics": [ "est_mg" ] }, { "page": "est_score", "title": "Estimate examinees' ability (proficiency) parameters", "topics": [ "est_score", "est_score.default", "est_score.est_irt" ] }, { "page": "gen.weight", "title": "Generate Weights", "topics": [ "gen.weight" ] }, { "page": "getirt", "title": "Extract Components from 'est_irt', 'est_mg', or 'est_item' Objects", "topics": [ "getirt", "getirt.est_irt", "getirt.est_item", "getirt.est_mg" ] }, { "page": "grdif", "title": "Generalized IRT residual-based DIF detection framework for multiple groups (GRDIF)", "topics": [ "grdif", "grdif.default", "grdif.est_irt", "grdif.est_item" ] }, { "page": "info", "title": "Item and Test Information Function", "topics": [ "info", "info.default", "info.est_irt", "info.est_item" ] }, { "page": "irtfit", "title": "Traditional IRT Item Fit Statistics", "topics": [ "irtfit", "irtfit.default", "irtfit.est_irt", "irtfit.est_item" ] }, { "page": "llike_score", "title": "Log-Likelihood of Ability Parameters", "topics": [ "llike_score" ] }, { "page": "LSAT6", "title": "LSAT6 Data", "topics": [ "LSAT6" ] }, { "page": "lwrc", "title": "Lord-Wingersky Recursion Formula", "topics": [ "lwrc" ] }, { "page": "pcd2", "title": "Pseudo-count D2 method", "topics": [ "pcd2" ] }, { "page": "plot.info", "title": "Plot Item and Test Information Functions", "topics": [ "plot.info" ] }, { "page": "plot.irtfit", "title": "Draw Raw and Standardized Residual Plots", "topics": [ "plot.irtfit" ] }, { "page": "plot.traceline", "title": "Plot Item and Test Characteristic Curves", "topics": [ "plot.traceline" ] }, { "page": "prm", "title": "Polytomous Response Model (PRM) Probabilities (GRM and GPCM)", "topics": [ "prm" ] }, { "page": "rdif", "title": "IRT Residual-Based Differential Item Functioning (RDIF) Detection Framework", "topics": [ "rdif", "rdif.default", "rdif.est_irt", "rdif.est_item" ] }, { "page": "reval_mst", "title": "Recursion-based MST evaluation method", "topics": [ "reval_mst" ] }, { "page": "ripd", "title": "Residual-based Item Parameter Drift (RIPD) Detection Framework", "topics": [ "ripd", "ripd.default", "ripd.est_irt", "ripd.est_item" ] }, { "page": "run_flexmirt", "title": "Run flexMIRT from Within R", "topics": [ "run_flexmirt" ] }, { "page": "shape_df", "title": "Create a Data Frame of Item Metadata", "topics": [ "shape_df" ] }, { "page": "shape_df_fipc", "title": "Combine fixed and new item metadata for fixed-item parameter calibration (FIPC)", "topics": [ "shape_df_fipc" ] }, { "page": "simCAT_DC", "title": "Simulated Single-Item Format CAT Data", "topics": [ "simCAT_DC" ] }, { "page": "simCAT_MX", "title": "Simulated Mixed-Item Format CAT Data", "topics": [ "simCAT_MX" ] }, { "page": "simdat", "title": "Simulated Response Data", "topics": [ "simdat" ] }, { "page": "simMG", "title": "Simulated multiple-group data", "topics": [ "simMG" ] }, { "page": "simMST", "title": "Simulated 1-3-3 MST Panel Data", "topics": [ "simMST" ] }, { "page": "summary", "title": "Summary of Item Calibration Results", "topics": [ "summary", "summary.est_irt", "summary.est_item", "summary.est_mg" ] }, { "page": "sx2_fit", "title": "S-X2 Fit Statistic", "topics": [ "sx2_fit", "sx2_fit.default", "sx2_fit.est_irt", "sx2_fit.est_item" ] }, { "page": "traceline", "title": "Compute Item/Test Characteristic 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"ps", "purrr", "qs2", "R.methodsS3", "R.oo", "R.utils", "R6", "RColorBrewer", "Rcpp", "RcppArmadillo", "RcppParallel", "reshape2", "Rfast", "rlang", "rprojroot", "S7", "scales", "sessioninfo", "SimDesign", "snakecase", "splines2", "statmod", "stringfish", "stringi", "stringr", "testthat", "tibble", "tidyr", "tidyselect", "timechange", "utf8", "vctrs", "vegan", "viridisLite", "waldo", "withr", "zigg" ], "_score": 3.8836614351536176, "_indexed": true, "_nocasepkg": "irtq", "_universes": [ "hwangq" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.1.0", "date": "2026-06-07T14:57:33.000Z", "distro": "noble", "commit": "d2f53970e7d6f37692a83f590bf5ae5e88744932", "fileid": "7a9a9519a95bf14db854267bd60fe27518c4af767acad944b72275a2d5136076", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/hwangq/actions/runs/27095869236" }, { "r": "4.6.0", "os": "linux", "version": "1.1.0", "date": "2026-06-07T14:57:35.000Z", "distro": "noble", "commit": 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