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PTSDdiag: Optimize PTSD Diagnostic Criteria

Provides tools for analyzing and optimizing PTSD (Post-Traumatic Stress Disorder) diagnostic criteria using PCL-5 (PTSD Checklist for DSM-5) and CAPS-5 (Clinician-Administered PTSD Scale for DSM-5) data. Functions identify optimal subsets of PCL-5 items that maintain diagnostic accuracy while reducing assessment burden. Includes tools for both hierarchical (cluster-based) and non-hierarchical symptom combinations, calculation of diagnostic metrics, and comparison with standard DSM-5 criteria. Model validation is conducted using holdout and cross-validation methods to assess robustness and generalizability of the results. For more details see Weidmann et al. (2025) <doi:10.31219/osf.io/6rk72_v1>.

Version: 0.4.1
Depends: R (≥ 3.5.0)
Imports: cli, dplyr, jsonlite, lifecycle, magrittr, rlang, stats, rsample, utils
Suggests: DT, future.apply, ggplot2, gtsummary, knitr, lattice, psych, rmarkdown, testthat (≥ 3.0.0), tidyr
Published: 2026-07-13
DOI: 10.32614/CRAN.package.PTSDdiag
Author: Laura Weidmann ORCID iD [aut], Tobias R. Spiller ORCID iD [aut, cre], Flavio A. Schüepp ORCID iD [aut]
Maintainer: Tobias R. Spiller <tobias.spiller at access.uzh.ch>
BugReports: https://github.com/TobiasRSpiller/PTSDdiag/issues
License: MIT + file LICENSE
URL: https://tobiasrspiller.github.io/PTSDdiag/, https://github.com/TobiasRSpiller/PTSDdiag
NeedsCompilation: no
Citation: PTSDdiag citation info
Materials: README, NEWS
CRAN checks: PTSDdiag results

Documentation:

Reference manual: PTSDdiag.html , PTSDdiag.pdf
Vignettes: CAPS-5 workflow (source, R code)
Comparing diagnostic criteria (source, R code)
Getting started with PTSDdiag (source, R code)
Validating a shared definition across sites (source, R code)
Validating abbreviated symptom definitions (source, R code)

Downloads:

Package source: PTSDdiag_0.4.1.tar.gz
Windows binaries: r-devel: PTSDdiag_0.1.0.zip, r-release: PTSDdiag_0.4.1.zip, r-oldrel: PTSDdiag_0.4.1.zip
macOS binaries: r-release (arm64): PTSDdiag_0.4.1.tgz, r-oldrel (arm64): PTSDdiag_0.4.1.tgz, r-release (x86_64): PTSDdiag_0.4.1.tgz, r-oldrel (x86_64): PTSDdiag_0.4.1.tgz
Old sources: PTSDdiag archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.