Tom Heyman1, Pieter Moors2, Hugh Rabagliati3. 1. Methodology and Statistics Unit, Institute of Psychology, Leiden University, Leiden, The Netherlands. t.d.p.heyman@fsw.leidenuniv.nl. 2. Laboratory of Experimental Psychology, Department of Brain and Cognition, KU Leuven, Leuven, Belgium. 3. School of Philosophy, Psychology & Language Sciences, University of Edinburgh, Edinburgh, UK.