Table 1.

Out-of-Bag Error Rates^* for Prediction of Receipt of Early Childhood Therapy

Out-of-Bag Error
Number of trees	250	750	1,000
Random forest	%	%	%
Number of randomly chosen variables per split
2	15.4	15.4	15.4
4	15.4	15.4	15.7
7	15.9	16.1	16.1
Bagging	17.0	16.6	15.7

^*The out-of-bag data are put down each bootstrap classification tree, and the results are aggregated to determine the out-of-bag error rate over the forest of trees.