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Submitted by Valentin Amrhein on

The "most devastating" of all false beliefs is probably that "if a difference or relation is not statistically significant, then it is zero, or at least so small that it can safely be considered to be zero" (Schmidt 1996). For an explanation and many further quotes and references, see also Amrhein V, Korner-Nievergelt F, Roth T. (2017) The earth is flat (p > 0.05): significance thresholds and the crisis of unreplicable research. PeerJ 5:e3544.