 Argumentation is also an important topic of investigation within cognitive science and psychology. Researchers in these fields are predominantly interested in the descriptive question of how people in fact engage in argumentation, rather than in the normative question of how they ought to do it (although some of them have also drawn normative conclusions, e.g., Hahn &amp; Oaksford 2006; Hahn &amp; Hornikx, 2016). Controlled experiments are one of the ways in which the descriptive question can be investigated.