Prediction models need appropriate internal, internal–external, and external validation

[...]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).

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Bibliographic Details
Published in:Journal of clinical epidemiology 2016-01, Vol.69, p.245-247
Main Authors: Steyerberg, Ewout W, Harrell, Frank E
Format: Article
Language:English
Subjects:
Calendars
Datasets
Epidemiology
Forecasting
Heterogeneity
Internal Medicine
Models, Theoretical
Prediction models
Sample size
Validation studies
Validation Studies as Topic
Validity
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Description
Summary:[...]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).
ISSN:0895-4356
1878-5921
DOI:10.1016/j.jclinepi.2015.04.005