THE TRANSFER OF THE EFFECTS OF TRAINING ONE RESPONSE UPON THE SUBSEQUENT TRAINING OF A DIFFERENT RESPONSE WERE DEMONSTRATED IN EXPERIMENTS USING VERBAL LABELS AND MOTOR RESPONSES. THE EXPERIMENTS PROVIDE AN EXPLANATION FOR LEARNING THAT IS A RESULT OF ASSOCIATING ONE RESPONSE WITH A STIMULUS PREVIOUSLY ASSOCIATED WITH ANOTHER RESPONSE. RESPONSES ARE CHAINED TOGETHER, EACH SERVING AS A DISCRIMINATIVE STIMULUS FOR THE NEXT RESPONSE IN THE CHAIN. CHAINING ALSO EXPLAINS THE ASSOCIATION OF A SECOND RESPONSE TO A STIMULUS WHEN BOTH RESPONSES HAVE PREVIOUSLY BEEN ASSOCIATED WITH ANOTHER COMMON STIMULUS. VERBAL-MOTOR CHAINS SEEM MUCH MORE EFFECTIVE THAN MOTOR-MOTOR OR MOTOR-VERBAL CHAINS OR NO CHAINS IN PRODUCING TRANSFER. MORE ATTENTION SHOULD BE GIVEN TO EXPLORATION OF RESPONSE PROPERTIES INSTEAD OF FOCUSING ALL ATTENTION UPON STIMULUS PROPERTIES IN TRANSFER OF TRAINING. (CG)