It seems that it is about time that I make a group differences and selection methods visualization... :) https://www.psychologytoday.com/blog/rabble-rouser/201606/hard-truths-and-half-truths-about-race-campus-part-ii …
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they left myths about the non-utility of standardised tests lying like road-kill on the highway of evidence.
However, their data are not open and their study is industry funded. Doubts remain. Science must be open.