title: The relative difficulty of the number, form, and color concepts of a Weigl-type problem.
authors.forename: D A
authors.initials: DA
authors.lastname: GRANT
authors.forename: O R
authors.initials: OR
authors.lastname: JONES
authors.forename: B
authors.initials: B
authors.lastname: TALLANTIS
mesh_terms: D003116:Color; D006801:Humans; D011589:Psychology, Experimental
keywords: PSYCHOLOGY/experimental