Pony's Choice: On Behavior Revisited

The article below is excerpt from On Behavior entitled "Pony's Choice." This selection comes from a speech, The President's Invited Scholar's Address, which I gave to the Association for Behavior Analysis (ABA) in 1992. I chose it as an example of how one could use operant conditioning techniques to develop abstract thinking—the weighing of alternatives—even in an animal not generally considered intelligent.