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Prediction models need appropriate internal, internal–external, and external validation
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Journal Article
Prediction models need appropriate internal, internal–external, and external validation
2016
Overview
[...]we may consider more direct tests for heterogeneity in predictor effects by place or time. [...]fully independent external validation with data not available at the time of prediction model development can be important (Fig. 2).
Publisher
Elsevier Inc,Elsevier Limited
