Table 1 Definitions of key terms
From: Assessment of reproducibility of cancer survival risk predictions across medical centers
Term | Definition |
|---|---|
Predictability (Predictive performance) | Ability of a model to predict risk scores of patients that can match their survival risks (not survival times). |
Generalizability (Reproducibility) | Ability of a model to predict risk scores of patients generated from different studies (different locations or different times). |
Consistency | Agreement between two centers to predict the risk scores of a targeted center. |
Transferability. | Agreement between one center and the targeted center to predict risk scores of targeted center. |
Internal validation | An assessment of predictive performance of a model in which the available data are divided into a training set and a test set, the model is developed in the training set and applied to the test set. |