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PreprintCC BY 4.0Zenodo

Churn Model Drift: Population Stability Index (PSI) Over 0.2 Retrain vs Recalibrate 2026

  • Sofia Lindström
Open at sourcePDFDOICite

Abstract

PSI over 0.2 signals churn model drift; recalibrate when covariate drift stays under 0.3, retrain if top features exceed 0.3 or AUC drops 0.03.

Independent technical note mirroring the canonical version: https://bteanalytics.co/blog/churn-model-drift-population-stability-index-psi-over-02-retrain-vs-recalibrate-2026.php

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Cite

BibTeXRIS
BibTeX
@misc{lindstrom2026churn,
  title = {{Churn Model Drift: Population Stability Index (PSI) Over 0.2 Retrain vs Recalibrate 2026}},
  author = {Sofia Lindström},
  howpublished = {Zenodo},
  year = {2026},
  month = oct,
  doi = {10.5281/zenodo.23634632},
  url = {https://zenodo.org/records/23634632},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Churn Model Drift: Population Stability Index (PSI) Over 0.2 Retrain vs Recalibrate 2026
AU  - Sofia Lindström
PY  - 2026
DA  - 2026/10/24
PB  - Zenodo
DO  - 10.5281/zenodo.23634632
UR  - https://zenodo.org/records/23634632
AB  - PSI over 0.2 signals churn model drift; recalibrate when covariate drift stays under 0.3, retrain if top features exceed 0.3 or AUC drops 0.03.  Independent technical note mirroring the canonical version: https://bteanalytics.co/blog/churn-model-drift-population-stability-index-psi-over-02-retrain-vs-recalibrate-2026.php
ER  -