Concept learning can involve either contingency shaping of stimulus-class discriminations or the application of definitions of the concepts. Experimental behavior analysts have studied contingency shaping, whereas educational psychologists have studied definitional concept training.In this paper, we analyze definition-based concept learning in terms of stimulusresponse chains. Then we apply this chaining analysis to principles of instruction proposed by educational psychologists. These principles include (a) stating the definition in terms of critical and variable attributes, (b) using examples and nonexamples, (c) using a rational set of examples and nonexamples, (d) presenting coordinate concepts simultaneously, and (e) presenting the next instance based on the learner's previous error.There have been several behavior-analytic based theoretical analyses of "cognitive" behavior. For example, Hayes proposed a relational control theory relevant to semantics (Hayes, 1991(Hayes, , 1994; Palmer (1991) presented a behavior-analytic model of memory; and many researchers have discussed how descriptions of contingencies (i.e., rules) control behavior (e.g., Cerutti, 1989;Malott, 1989;Schlinger, 1993;Skinner, 1957). Most of these analyses suggest that we can interpret cognitive behavior in terms of the basic principles without using hypothetical constructs such as meanings and memory.In keeping with these analyses, the preThis paper is based on a review paper submitted by the first author to Western Michigan University in partial fulfillment of the requirement of a doctoral degree. The authors gratefully acknowledge the Associate Editor and three reviewers for their helpful comments and suggestions. Requests for reprints should be sent to Satoru Shimamune, now affiliated with the