Simulation results on the power and size of the test. <b>In all simulations, the true negative class mean is set at zero for both studies, and the standard deviations of the true negative class and the true positive class are one for both studies.</b>

Abstract

<p> Miu.1 is the true positive class mean of study 1; miu.2 is the true positive class mean of study 2. All curves are based on 100 simulations. Horizontal line: the alpha level 0.05 for the purpose of examining the size of the test. (a) The simple scenario where both studies have the same sample size (4000) and class ratio. (b) The more complex case where study 1 has 2000 samples, study 2 has 4000 samples, and the class ratios are different.</p