Within ratio responding during fixed ratio performance

Abstract

Five rats were trained in steps from FR 10 to FR 120 or FR 160. Response rate increased to a maximum between FR 40 or FR 80 although the reinforcement frequency continually declined from FR 10 to higher ratios. Measurement of interresponse times revealed that changes in within ratio responding were inversely correlated with changes in response rate. © 1968, Psychonomic Journals. All rights reserved.