{ "_id": "6a192aaaacfb0bcc41dcddb4", "Package": "robustDIF", "Type": "Package", "Title": "Differential Item Functioning Using Robust Scaling", "Version": "0.2.0", "Authors@R": "c(\nperson(given = \"Peter\",\nfamily = \"Halpin\",\nrole = c(\"aut\", \"cre\"),\nemail = \"peter.halpin@unc.edu\"),\nperson(given = \"Kyle\",\nfamily = \"Nickodem\",\nrole = \"ctb\"),\nperson(given = \"James\",\nfamily = \"Eagle\",\nrole = \"ctb\")\n)", "Description": "Provides tools for testing differential item functioning\n(DIF) and differential test functioning (DTF) in two-group item\nresponse theory models. The package estimates robust scaling\nparameters via iteratively reweighted least squares with\nTukey's bisquare loss, and supports Wald-type tests of\nitem-level and test-level differences from robust scaling\nparameters. Inputs can be supplied directly from model\nparameter/covariance objects or extracted from fitted 'mirt'\nand 'lavaan' models. Methods are described in Halpin (2022)\n.", "License": "GPL (>= 3)", "Encoding": "UTF-8", "LazyData": "true", "Config/testthat/edition": "3", "RoxygenNote": "7.3.3", "URL": "https://peterhalpin.github.io/robustDIF/", "Config/pak/sysreqs": "cmake make libuv1-dev libx11-dev", "Repository": "https://peterhalpin.r-universe.dev", "Date/Publication": "2026-04-23 17:05:48 UTC", "RemoteUrl": "https://github.com/peterhalpin/robustdif", "RemoteRef": "HEAD", "RemoteSha": "fdabf378379e4bf2dc658ca13d4cc50370e90205", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-28 14:57:19 UTC", "User": "root" }, "Author": "Peter Halpin [aut, cre],\nKyle Nickodem [ctb],\nJames Eagle [ctb]", "Maintainer": "Peter Halpin ", "MD5sum": "e106e98cc95d0f3bb6dd554558ab7d79", "_user": "peterhalpin", "_type": "src", "_file": "robustDIF_0.2.0.tar.gz", "_fileid": "bb78a8099ec60493be4203a62c93b1c1acc8c79f2802fbd7b2b005516249b2fc", "_filesize": 446938, "_sha256": 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