Gordon Pennycook1, David G Rand2. 1. Hill/Levene Schools of Business, University of Regina, Saskatchewan, Canada; Department of Psychology, University of Regina, Saskatchewan, Canada. Electronic address: gordon.pennycook@uregina.ca. 2. Sloan School of Management, Massachusetts Institute of Technology, MA, USA; Institute for Data, Systems, and Society, Massachusetts Institute of Technology, MA, USA; Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, MA, USA.