Figure 1: A Graph showing grades achieved against the time ... which we can do using the initial regression equation with the values of test score and time spent set as their respective means, along ...

Both polygenicity (many small genetic effects) and confounding biases, such as cryptic relatedness and population stratification, can yield an inflated distribution of test statistics in genome ...

Wait. Where are we seeing regression to the mean in all of this? Consider the way I simulated a vector of three test scores for each person. Each score is subject to a systematic component (from the ...