The other big problem is studies which do report effect sizes but do not report their statistical power. If your study is too small to detect the true effect, t

The other big problem is studies which do report effect sizes but do not report their statistical power. If your study is too small to detect the true effect, the only possible way you can achieve significance is by getting lucky and detecting an exaggerated effect -- and in many fields the average study is far too small to detect the true effects. I'm halfway through a major revision of my guide to statistical error that discusses this topic: http://www.refsmmat.com/statistics/regression.html#truth-inflation http://www.refsmmat.com/statistics/regression.html#truth-inf...