{ "_id": "6a1ef5c0b401979e73416f3a", "Package": "irtsim", "Title": "Monte Carlo Simulation-Based Sample-Size Planning for Item\nResponse Theory", "Version": "0.1.2.9000", "Authors@R": "person(\"Stephen\", \"Ward\", , \"stephen_ward+irtsim@abhome.co\", role = c(\"aut\", \"cre\"))", "Description": "Provides a pipeline application programming interface\n(API) for Monte Carlo simulation-based sample-size planning in\nitem response theory (IRT). Implements the 10-decision\nframework from Schroeders and Gnambs (2025)\n as a three-step workflow:\nspecify the data-generating model with irt_design(), add study\nconditions with irt_study(), and run simulations with\nirt_simulate(). Supports one-parameter logistic (1PL),\ntwo-parameter logistic (2PL), and graded response models with\nmissing-completely-at-random (MCAR), missing-at-random (MAR),\nbooklet, and linking missingness mechanisms. Results include\nmean squared error (MSE), bias, root mean squared error (RMSE),\nstandard error (SE), and coverage criteria with summary and\nplot methods.", "License": "GPL (>= 3)", "URL": "https://sward1.github.io/irtsim/, https://github.com/sward1/irtsim", "BugReports": "https://github.com/sward1/irtsim/issues", "VignetteBuilder": "R.rsp, knitr", "Config/testthat/edition": "3", "Encoding": "UTF-8", "Language": "en-US", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.3", "Config/pak/sysreqs": "cmake make libuv1-dev libx11-dev", "Repository": "https://sward1.r-universe.dev", "Date/Publication": "2026-06-02 12:46:14 UTC", "RemoteUrl": "https://github.com/sward1/irtsim", "RemoteRef": "HEAD", "RemoteSha": "e5d368412341da5550fa46d838f0d3d60b3a3408", "NeedsCompilation": "no", "Packaged": { "Date": "2026-06-02 15:19:11 UTC", "User": "root" }, "Author": "Stephen Ward [aut, cre]", "Maintainer": "Stephen Ward ", "MD5sum": "f1e727b7c04f3387bcea948072b2e43e", "_user": "sward1", "_type": "src", "_file": "irtsim_0.1.2.9000.tar.gz", "_fileid": "c42d74e2da90b411c667a152265796b300d4eded6ba2e5d630a3a5ff1ef8809e", "_filesize": 837158, "_sha256": "c42d74e2da90b411c667a152265796b300d4eded6ba2e5d630a3a5ff1ef8809e", "_created": "2026-06-02T15:19:11.000Z", "_published": "2026-06-02T15:24:48.003Z", "_distro": "noble", "_jobs": [ { "job": 79106616297, "time": 285, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7362147313" }, { "job": 79106616233, "time": 277, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7362142870" }, { "job": 79106615974, "time": 170, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7362095346" }, { "job": 79106616241, "time": 170, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7362108899" }, { "job": 79105775751, "time": 226, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7362015403" }, { "job": 79106616307, "time": 130, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7362075845" }, { "job": 79106616449, "time": 241, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7362130972" }, { "job": 79106616014, "time": 266, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7362138010" }, { "job": 79106616123, "time": 284, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7362148140" } ], "_buildurl": "https://github.com/r-universe/sward1/actions/runs/26829303711", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/sward1/irtsim", "_commit": { "id": "e5d368412341da5550fa46d838f0d3d60b3a3408", "author": "Stephen ", "committer": "Stephen ", "message": "benchmarks: add test-length scalability benchmark (Obj 36)\n\nProfiles irt_simulate() at n_items 30-150 x N 200-1000 x {2PL, GRM}, serial.\nFindings: wall-clock ~n_items^1.7, GRM ~3-4x 2PL, 96% mirt-bound, peak resident\nheap flat ~400MB (no OOM; multi-GB figures were allocation churn). benchmarks/\nis .Rbuildignore'd so it never ships in the tarball. See benchmarks/README.md.\n", "time": 1780404374 }, "_maintainer": { "name": "Stephen Ward", "email": "stephen_ward+irtsim@abhome.co" }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.1.0", "role": "Depends" }, { "package": "cli", "role": "Imports" }, { "package": "future.apply", "role": "Imports" }, { "package": "ggplot2", "role": "Imports" }, { "package": "mirt", "role": "Imports" }, { "package": "rlang", "role": "Imports" }, { "package": "future", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "R.rsp", "version": ">= 0.46.0", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "scales", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" } ], "_owner": "sward1", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-16", "n": 5 }, { "week": "2026-17", "n": 6 }, { "week": "2026-18", "n": 4 }, { "week": "2026-19", "n": 5 }, { "week": "2026-20", "n": 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PCM Item Parameters", "topics": [ "irt_params_pcm" ] }, { "page": "irt_simulate", "title": "Run an IRT Monte Carlo Simulation", "topics": [ "irt_simulate" ] }, { "page": "irt_study", "title": "Define Study Conditions for an IRT Simulation", "topics": [ "irt_study" ] }, { "page": "plot.irt_results", "title": "Plot IRT Simulation Results", "topics": [ "plot.irt_results" ] }, { "page": "plot.summary_irt_results", "title": "Plot Summary of IRT Simulation Results", "topics": [ "plot.summary_irt_results" ] }, { "page": "print.irt_design", "title": "Print an IRT Design", "topics": [ "print.irt_design" ] }, { "page": "print.irt_results", "title": "Print an IRT Simulation Result", "topics": [ "print.irt_results" ] }, { "page": "print.irt_study", "title": "Print an IRT Study", "topics": [ "print.irt_study" ] }, { "page": "print.summary_irt_results", "title": "Print Summary of IRT Simulation Results", "topics": [ "print.summary_irt_results" ] }, { "page": "recommended_n", "title": "Find the 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