ABSTRACT
In the "2:4:6" induction task, participants are told that a rule underlies the generation of number triples of which 2:4:6 is an example. The rule is "any increasing sequence". Subjects are instructed to attempt to discover the rule by producing new triples which the experimenter classifies as conforming or not conforming to the rule. Wason (1960) originally proposed that Popperian falsificationism was the normative hypothesis-testing model against which subjects' behavior should be assessed. This proposal has dictated most of the subsequent research (e.g., Gorman, Stafford, & Gorman, 1987).
