title: Two perils of binary categorization: why the study of concepts can't afford true/false testing.
authors.affiliation: Department of Psychology, Columbia University New York, NY, USA.
authors.forename: Greg
authors.initials: G
authors.lastname: Jensen
authors.affiliation: Department of Psychology, University of Edinburgh Edinburgh, UK.
authors.forename: Drew
authors.initials: D
authors.lastname: Altschul
keywords: animal cognition; categorization; comparative cognition; concepts; machine learning