TT : a program that implements predictor sort design and analysis

In studies on wood strength, researchers sometimes replace experimental unit allocation via random sampling with allocation via sorts based on nondestructive measurements of strength predictors such as modulus of elasticity and specific gravity. This report documents TT, a computer program that implements recently published methods to increase the sensitivity of such “predictor sort” experiments. The report consists of annotated keyboard sessions and computer output from runs of TT.