Package: driftwatch Title: Sequential Monitoring of Item Parameter Drift Version: 0.1.0 Authors@R: person("Daniel", "Edi", email = "danieledi2026@gmail.com", role = c("aut", "cre", "cph"), comment = c(ORCID = "0000-0001-5475-819X")) Description: Ongoing surveillance of item parameter drift for continuous testing programs and pre-equated item banks. Estimates item difficulty in rolling calibration windows, runs sequential cumulative sum (CUSUM) detection (Page, 1954, ; applied to testing by Veerkamp and Glas, 2000, ) with change-point estimation, separates gradual drift from abrupt jumps, tunes alarm thresholds for a bank-wide false-alarm target by simulation on the program's own design, quantifies score and pass-rate impact, and records recommended actions in an audit log. License: MIT + file LICENSE URL: https://github.com/edidatasolutions/driftwatch, https://edidatasolutions.github.io/driftwatch/ BugReports: https://github.com/edidatasolutions/driftwatch/issues Encoding: UTF-8 Depends: R (>= 4.1) Imports: stats, utils Suggests: knitr, markdown VignetteBuilder: knitr Config/roxygen2/version: 8.1.0 Repository: https://edidatasolutions.r-universe.dev Date/Publication: 2026-10-09 03:04:23 UTC RemoteUrl: https://github.com/edidatasolutions/driftwatch RemoteRef: HEAD RemoteSha: e8bc84f2aa29657e65b0bc6532efb8cc9291b485 NeedsCompilation: no Packaged: 2026-10-09 13:25:24 UTC; root Author: Daniel Edi [aut, cre, cph] (ORCID: ) Maintainer: Daniel Edi