Results obtained from performing 10fCV 100 times using the SuperLearner model. The bottom and upper panels present results with and without balanced sampling, respectively. The upper-left panel shows the results obtained from the SuperLearner model. The upper-right panel shows the corresponding bias-corrected results. The bottom-left panel shows the result obtained from the SuperLearner model when using a balanced sample. The bottom-right panel shows the corresponding bias-corrected results.