...[the] entire Cochrane “meta-analysis” debacle is a textbook example of Confirmation Bias: “the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values.”

What Tom Jefferson is specifically guilty of is the Observer-expectancy effect: “interpreting results incorrectly because of the tendency to look for information that conforms to their hypothesis, and overlook information that argues against it.” Jefferson cherry-picked studies to try and prove his conclusions, as he was tasked by his funder, the neo-Confederate billionaire & child labor fetishist Jeffrey Tucker.