psymetrics: Psychometric Model Fit and Reporting Tools

psymetrics provides a unified workflow to inspect psychometric model fit, compare fitted models, extract parameter estimates, and generate publication-ready outputs.

Current scope

The package currently focuses on lavaan CFA and SEM workflows.

• Stable now:
  • Fit extraction with model_fit()
  • Fit comparison with compare_model_fit()
  • Parameter extraction with model_estimates()
  • Parameter comparison with compare_model_estimates()
  • Reporting with format_results() and save_table()
  • Loading visualization with plot_factor_loadings()
• In development:
  • Measurement invariance helpers
  • Additional model-class support (psych, mirt)

Install

# install.packages("pak")
pak::pak("brianmsm/psymetrics@v0.4.0")

Recommended path

1. Start with the fit workflow article.
2. Continue with SEM and parameter estimates.
3. Finish with reporting and visualization patterns.

Documentation map

• Articles:
  • Get started with fit indices
  • SEM and parameter estimates with lavaan
  • Reporting and visualization
• API reference: Reference
• Changes by release: News
• Project roadmap: ROADMAP

Contributing

Issues and feature requests are welcome:

• Bug reports: include a minimal reproducible example.
• Feature requests: include the target workflow and expected output.

GitHub issues: https://github.com/brianmsm/psymetrics/issues