PTSDdiag is a comprehensive R package for analyzing and simplifying PTSD diagnostic criteria using PCL-5 (PTSD Checklist for DSM-5) data. It provides tools to identify optimal subsets of six PCL-5 items that maintain diagnostic accuracy while reducing assessment burden.
- Data preparation and standardization for PCL-5 scores
- Implementation of DSM-5 diagnostic criteria
- Calculation of diagnostic metrics and summary statistics
- Simplification of diagnostic criteria through:
- Hierarchical (cluster-based) approach
- Non-hierarchical approach
- Comparison of different diagnostic approaches
- Model validation using:
- Holdout Validation
- Cross-Validation
You can install the released version of PTSDdiag from CRAN:
install.packages("PTSDdiag")Or install the development version from GitHub:
# install.packages("devtools")
devtools::install_github("WeidmannL/PTSDdiag")The vignette demonstrates how to use the package to prepare the PCL-5 data, calculate some basic descriptive statistics and reliability metrics, find the optimal minimal symptom combinations for PTSD diagnosis, compare different diagnostic approaches and perform validation methods for evaluating model performance.
- If you have any suggestions or if you find a bug, please report them using GitHub issue tracker.
- Contributions are welcome! Please feel free to submit a Pull Request.