HARKing (hypothesizing after the results are known) is an acronym coined by social psychologist Norbert Kerr[1] that refers to the questionable research practice of "presenting a post hoc hypothesis in the introduction of a research report as if it were an a priori hypothesis".[1][2] Hence, a key characteristic of HARKing is that post hoc hypothesizing is falsely portrayed as a priori hypothesizin