# Evaluation of clinical prediction models (part 2): how to undertake an external validation study

“Evaluation of clinical prediction models (part 2): how to undertake an external validation study” (2024), by Richard D Riley et al. Mathematics research paper. Original abstract below, unchanged. No free PDF was found.

- Authors: Richard D Riley, Lucinda Archer, Kym I E Snell, Joie Ensor, Paula Dhiman, Glen Philip Martin, Laura Jayne Bonnett, Professor Gary S. Collins
- Published: January 15, 2024
- Field: Mathematics
- DOI: https://doi.org/10.1136/bmj-2023-074820
- Source: https://doi.org/10.1136/bmj-2023-074820

## Abstract

External validation studies are an important but often neglected part of prediction model research. In this article, the second in a series on model evaluation, Riley and colleagues explain what an external validation study entails and describe the key steps involved, from establishing a high quality dataset to evaluating a model’s predictive performance and clinical usefulness.

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