{
  "_id": "6adf111b99abf48473f4de4d",
  "Package": "IRTM",
  "Title": "Theory-Driven Item Response Theory (IRT) Models",
  "Version": "0.0.1.2",
  "Authors@R": "c(person(given = \"Marco\",\nfamily = \"Morucci\",\nrole = \"aut\",\nemail = \"moruccim@msu.edu\"),\nperson(given = \"Margaret\",\nfamily = \"Foster\",\nrole = \"aut\",\nemail = \"m.jenkins.foster@gmail.com\",\ncomment = c(ORCID = \"0000-0002-6418-8394\")),\nperson(given = \"David\",\nfamily = \"Siegel\",\nrole = c(\"aut\", \"cre\"),\nemail = \"david.siegel@duke.edu\",\ncomment = c(ORCID = \"0000-0003-1619-6119\")))",
  "Description": "IRT-M is a semi-supervised approach based on Bayesian Item\nResponse Theory that produces theoretically identified\nunderlying dimensions from input data and a constraints matrix.\nThe methodology is fully described in 'Morucci et al. (2024),\n\"Measurement That Matches Theory: Theory-Driven Identification\nin Item Response Theory Models\"'. Details are available at\n<https://www.cambridge.org/core/journals/american-political-science-review/article/measurement-that-matches-theory-theorydriven-identification-in-item-response-theory-models/395DA1DFE3DCD7B866DC053D7554A30B>.",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.2",
  "VignetteBuilder": "knitr",
  "LazyData": "true",
  "Config/testthat/edition": "3",
  "Language": "en-US",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-10-26 08:30:50 UTC",
    "User": "root"
  },
  "Author": "Marco Morucci [aut], Margaret Foster [aut] (ORCID:\n<https://orcid.org/0000-0002-6418-8394>), David Siegel [aut,\ncre] (ORCID: <https://orcid.org/0000-0003-1619-6119>)",
  "Maintainer": "David Siegel <david.siegel@duke.edu>",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2026-04-21 08:12:49 UTC",
  "RemoteUrl": "https://github.com/cran/IRTM",
  "RemoteRef": "HEAD",
  "RemoteSha": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
  "_user": "cran",
  "_type": "src",
  "_file": "IRTM_0.0.1.2.tar.gz",
  "_fileid": "https://r2.ropensci.org/9d7961bf71ca3ad087afd132ef2d77b3b633b2b04e908fe21009048d5d413b65",
  "_filesize": 2561227,
  "_sha256": "9d7961bf71ca3ad087afd132ef2d77b3b633b2b04e908fe21009048d5d413b65",
  "_expires": "2027-02-03T08:36:42.000Z",
  "_created": "2026-10-26T08:30:50.000Z",
  "_published": "2026-10-26T08:36:43.854Z",
  "_upstream": "https://github.com/cran/IRTM",
  "_status": "success",
  "_maintainer": {
    "name": "David Siegel",
    "email": "david.siegel@duke.edu",
    "login": "dasiegel",
    "description": "",
    "uuid": 19367725,
    "orcid": "0000-0003-1619-6119"
  },
  "_jobs": [
    {
      "job": 121471794510,
      "time": 152,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12636985969"
    },
    {
      "job": 121471794621,
      "time": 195,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12637485832"
    },
    {
      "job": 121471794667,
      "time": 181,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12636732612"
    },
    {
      "job": 121471794650,
      "time": 191,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12637186143"
    },
    {
      "job": 121469424981,
      "time": 378,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12637135575"
    },
    {
      "job": 121471794581,
      "time": 135,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "12637570492"
    },
    {
      "job": 121471794527,
      "time": 267,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12636723082"
    },
    {
      "job": 121471794580,
      "time": 231,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12637825247"
    },
    {
      "job": 121471794612,
      "time": 287,
      "config": "windows-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12637381277"
    },
    {
      "job": 121471794804,
      "time": 130,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12636722636"
    }
  ],
  "_buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636",
  "_commit": {
    "id": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
    "author": "David Siegel <david.siegel@duke.edu>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 0.0.1.2\n",
    "time": 1776759169
  },
  "_distro": "resolute",
  "_host": "GitHub-Actions",
  "_registered": true,
  "_dependencies": [
    {
      "package": "truncnorm",
      "role": "Depends"
    },
    {
      "package": "tmvtnorm",
      "role": "Depends"
    },
    {
      "package": "utils",
      "role": "Depends"
    },
    {
      "package": "RcppProgress",
      "role": "Depends"
    },
    {
      "package": "RcppDist",
      "role": "Depends"
    },
    {
      "package": "ggplot2",
      "role": "Depends"
    },
    {
      "package": "R",
      "version": ">= 3.5.0",
      "role": "Depends"
    },
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "RcppArmadillo",
      "role": "LinkingTo"
    },
    {
      "package": "RcppDist",
      "role": "LinkingTo"
    },
    {
      "package": "RcppProgress",
      "role": "LinkingTo"
    },
    {
      "package": "coda",
      "role": "Imports"
    },
    {
      "package": "Rcpp",
      "role": "Imports"
    },
    {
      "package": "RcppArmadillo",
      "role": "Imports"
    },
    {
      "package": "ggridges",
      "role": "Imports"
    },
    {
      "package": "rlang",
      "role": "Imports"
    },
    {
      "package": "dplyr",
      "role": "Imports"
    },
    {
      "package": "reshape2",
      "role": "Imports"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "RColorBrewer",
      "role": "Suggests"
    },
    {
      "package": "fastDummies",
      "role": "Suggests"
    },
    {
      "package": "ggrepel",
      "role": "Suggests"
    },
    {
      "package": "tidyverse",
      "role": "Suggests"
    },
    {
      "package": "spelling",
      "role": "Suggests"
    }
  ],
  "_owner": "cran",
  "_selfowned": false,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-17",
      "n": 1
    }
  ],
  "_tags": [
    {
      "name": "0.0.1.2",
      "date": "2026-04-21"
    }
  ],
  "_stars": 0,
  "_contributors": [
    {
      "user": "dasiegel",
      "count": 1,
      "uuid": 19367725
    },
    {
      "user": "margaretfoster",
      "count": 1,
      "uuid": 10012916
    }
  ],
  "_userbio": {
    "uuid": 6899542,
    "type": "organization",
    "name": "cran",
    "followers": 634,
    "description": "Unofficial read-only mirror of all CRAN R packages"
  },
  "_downloads": {
    "count": 365,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/IRTM"
  },
  "_searchresults": 29,
  "_topics": [
    "openblas",
    "cpp",
    "openmp"
  ],
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/IRTM.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_realowner": "dasiegel",
  "_cranurl": false,
  "_releases": [
    {
      "version": "0.0.1.1",
      "date": "2025-04-19"
    },
    {
      "version": "0.0.1.2",
      "date": "2026-04-21"
    }
  ],
  "_exports": [
    "dim_corr",
    "get_lambdas",
    "Geweke_convergence",
    "irt_m",
    "irt_vis",
    "M_constrained_irt",
    "mse",
    "pair_gen_anchors",
    "standardize_theta",
    "theta_av",
    "theta_lambda_traceplots"
  ],
  "_datasets": [
    {
      "name": "MCodes",
      "title": "Methodological Codes",
      "object": "mcodes",
      "class": [
        "spec_tbl_df",
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "QCode",
        "QMap",
        "SubstantiveNotes",
        "D1-Culture threat",
        "D2-ReligionThreat",
        "D3-Economic Threat",
        "D4-HealthThreat",
        "O1-OutcomeSupportImmigration",
        "O2-OutcomeSupportEU"
      ],
      "rows": 793,
      "table": true,
      "tojson": true
    },
    {
      "name": "synth_idvs",
      "title": "Synthetic Independent Variables",
      "object": "synth_idvs",
      "class": [
        "data.frame"
      ],
      "fields": [
        "X",
        "uniqid",
        "d63",
        "class",
        "polorient",
        "mediatrust",
        "trustnom",
        "trustallm",
        "trustwebonly",
        "trusttradm",
        "qa6a_1",
        "qa6a_2",
        "qa6a_5",
        "qa6a_3",
        "qa6at",
        "qa6a_4",
        "d63.1",
        "d15a",
        "d1r2",
        "d1",
        "d11r1",
        "d10",
        "d1r1",
        "d15a_r1",
        "d11",
        "d11r2",
        "d15a_r2"
      ],
      "rows": 3000,
      "table": true,
      "tojson": true
    },
    {
      "name": "synth_questions",
      "title": "Questions for the Synthetic European sentiment survey in the vignette",
      "object": "synth_questions",
      "class": [
        "data.frame"
      ],
      "fields": [
        "d73_4",
        "qa10_3",
        "qd5_14",
        "qa4a_5",
        "qa2a_4",
        "polintr_4",
        "qa2a_5",
        "d40b",
        "qa6b_3",
        "qa13_2",
        "qa4a_4",
        "d40a_r",
        "d40abc_r3",
        "qa4a_9",
        "qa4a_13",
        "qa2a_6",
        "d70",
        "qa3a_11",
        "qa16",
        "sd22_1",
        "d8",
        "d40b_r",
        "qa19",
        "d62_4",
        "polintr_1",
        "qd5_6",
        "qa6b_1",
        "d62_2",
        "netuse",
        "qa3a_17",
        "qc1a_4",
        "d8r2",
        "d78",
        "d9r",
        "qd5_15",
        "d40c",
        "d40abc_r1",
        "sd22t7",
        "d40abc_r4",
        "qa4a_12",
        "qa4a_17",
        "d71_2",
        "qc1a_1",
        "qa1a_4",
        "qa18_5",
        "qa4a_18",
        "qc1a_3",
        "qa17",
        "qd5_2",
        "d62_1",
        "sd22t3",
        "qa3a_4",
        "d71_1",
        "qa4a_15",
        "d9",
        "d40abc_r2",
        "qd5_1",
        "qd1",
        "qa2a_1",
        "qd8_3",
        "qa14",
        "qa4a_1",
        "sd22t8",
        "qa1a_5",
        "qa10_2",
        "qa3a_3",
        "qa4a_19",
        "qa3a_10",
        "qa7_1",
        "qa3a_2",
        "qa3a_5",
        "qd5_16",
        "qa3a_8",
        "qa3a_14",
        "d73_2",
        "d40c_r",
        "d8r1",
        "qd5_12",
        "sd22t6",
        "qd5_9",
        "d73_1",
        "qa4a_16",
        "d62_3",
        "qa3a_16",
        "qa13_1",
        "qd5_10",
        "qa8_1",
        "qa6b_10",
        "qd5_8",
        "qa2a_3",
        "qa1a_6",
        "qa3a_15",
        "qa4a_6",
        "d71_3",
        "sd22t2",
        "qa1a_2",
        "qc1a_2",
        "qd5_13",
        "qa18_3",
        "qd8_4",
        "qd8_1",
        "qa3a_18",
        "qa3a_9",
        "d40a",
        "qa6b_8",
        "polintr_3",
        "qa3a_13",
        "d7",
        "qa4a_11",
        "d60",
        "sd22t4",
        "qd5_7",
        "qa3a_6",
        "qd2",
        "qa4a_3",
        "polintr_2",
        "qa2a_2",
        "qa4a_14",
        "qa2a_7",
        "qa1a_3",
        "qa10_1",
        "qd5_5",
        "d25",
        "sd22t5",
        "qa3a_1",
        "qd5t",
        "qd8_2",
        "qa1a_1",
        "sd22_2",
        "qd5_11",
        "qa3a_12",
        "qa8_2",
        "qd5_4",
        "sd22t1",
        "d7r",
        "qa18_1",
        "qd5_3",
        "d62t",
        "qa18_2",
        "d73_3",
        "qa4a_7",
        "sd18a",
        "qa4a_10",
        "qa7_2",
        "qa1a_7",
        "qa4a_2"
      ],
      "rows": 3000,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "dim_corr",
      "title": "learned correlations",
      "topics": [
        "dim_corr"
      ]
    },
    {
      "page": "get_lambdas",
      "title": "get_lambdas",
      "topics": [
        "get_lambdas"
      ]
    },
    {
      "page": "Geweke_convergence",
      "title": "Geweke Convergence",
      "topics": [
        "Geweke_convergence"
      ]
    },
    {
      "page": "irt_m",
      "title": "irt_m",
      "topics": [
        "irt_m"
      ]
    },
    {
      "page": "irt_vis",
      "title": "irt_vis",
      "topics": [
        "irt_vis"
      ]
    },
    {
      "page": "M_constrained_irt",
      "title": "M_constrained_irt",
      "topics": [
        "M_constrained_irt"
      ]
    },
    {
      "page": "MCodes",
      "title": "Methodological Codes",
      "topics": [
        "MCodes"
      ]
    },
    {
      "page": "mse",
      "title": "Mean Squared Error",
      "topics": [
        "mse"
      ]
    },
    {
      "page": "pair_gen_anchors",
      "title": "pair_gen_anchors",
      "topics": [
        "pair_gen_anchors"
      ]
    },
    {
      "page": "standardize_theta",
      "title": "Standardize Theta",
      "topics": [
        "standardize_theta"
      ]
    },
    {
      "page": "synth_idvs",
      "title": "Synthetic Independent Variables",
      "topics": [
        "synth_idvs"
      ]
    },
    {
      "page": "synth_questions",
      "title": "Questions for the Synthetic European sentiment survey in the vignette",
      "topics": [
        "synth_questions"
      ]
    },
    {
      "page": "theta_av",
      "title": "Average Thetas",
      "topics": [
        "theta_av"
      ]
    },
    {
      "page": "theta_lambda_traceplots",
      "title": "Theta Lambda Traceplots",
      "topics": [
        "theta_lambda_traceplots"
      ]
    }
  ],
  "_readme": "https://github.com/cran/IRTM/raw/HEAD/README.md",
  "_rundeps": [
    "cli",
    "coda",
    "cpp11",
    "dplyr",
    "farver",
    "generics",
    "ggplot2",
    "ggridges",
    "glue",
    "gmm",
    "gtable",
    "isoband",
    "labeling",
    "lattice",
    "lifecycle",
    "magrittr",
    "Matrix",
    "mvtnorm",
    "pillar",
    "pkgconfig",
    "plyr",
    "R6",
    "RColorBrewer",
    "Rcpp",
    "RcppArmadillo",
    "RcppDist",
    "RcppProgress",
    "reshape2",
    "rlang",
    "S7",
    "sandwich",
    "scales",
    "stringi",
    "stringr",
    "tibble",
    "tidyselect",
    "tmvtnorm",
    "truncnorm",
    "utf8",
    "vctrs",
    "viridisLite",
    "withr",
    "zoo"
  ],
  "_sysdeps": [
    {
      "shlib": "liblapack",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libblas",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    },
    {
      "shlib": "libgomp",
      "package": "libgomp1",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "openmp",
      "homepage": "http://gcc.gnu.org/",
      "description": "GCC OpenMP (GOMP) support library"
    }
  ],
  "_vignettes": [
    {
      "source": "introduction_synth.Rmd",
      "filename": "introduction_synth.html",
      "title": "IRT-M Vignette (Synthetic Data)",
      "author": "Margaret J Foster",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Packages",
        "Loading the package; Dependencies",
        "Formatting the Observed Data",
        "Creating the M-Matrix",
        "Processing with IRT-M",
        "Interpretation and Analysis",
        "Correlation matrices",
        "Visualizations",
        "Lambda"
      ],
      "created": "2025-04-19 12:22:01",
      "modified": "2026-04-21 08:12:49",
      "commits": 2
    }
  ],
  "_score": 3.161368002234975,
  "_indexed": false,
  "_nocasepkg": "irtm",
  "_universes": [
    "cran"
  ],
  "_indexurl": "https://dasiegel.r-universe.dev/IRTM",
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:33:04.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/c011325ac5c42d92642f1829caa2301127854860f9b80e5faf7702e4a1ead030",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:33:26.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/53932fd51e1eedb5e5c5b18668f4b4b24b4997c544f21ec0294d6188033833ad",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:33:33.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/0b40f9ea8df96bb75b4ab79fb3ead1dad1631f2f7cfc002caca2ded0e2f9eee2",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:33:31.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/9d568615410385d7207f50dee2bd850c45e16114a0ad07a817269f3597f5229b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:33:29.000Z",
      "arch": "emscripten",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/7d37903a5b88fe78560166a2daff9ee428578ee99a8d95416429624b29cc21ea",
      "status": "success",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:34:29.000Z",
      "arch": "aarch64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/a280397584484f50790da74966caef9e5ce76dd3569c7169e32e9733de095329",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:32:38.000Z",
      "arch": "x86_64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/5c991099c2d2266df011abe4ef42de76edfcc39682160793546e6f9154ea5e7b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:34:50.000Z",
      "arch": "aarch64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/cbef915373232e530ed15ea3824f90474a0556bb06dd447bdea9001e3b1272cf",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "0.0.1.2",
      "date": "2026-10-26T08:32:19.000Z",
      "arch": "x86_64",
      "commit": "a9559886041480ce5785d4ac86f3f0f5bcc30766",
      "fileid": "https://r2.ropensci.org/002fc29257c41575255bbb57c5bfefb2a6242cca16fe5713f3b1a10ecf8f7a72",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/40292090636"
    }
  ]
}