Three experiments analyze correspondence training as a chain of five events consisting of a promise, a series of behaviors leading from the promise to its nonverbal fulfillment (called "intermediate behavior"), a nonverbal behavior that fulfills the promise, a verbal report, and a nonverbal (or reported) behavior. Eight three- to…

In this article infant operant conditioning studies are grouped according to distinct procedures: free operant; discrete trial with one discriminative stimulus; discrete trial with two or more discriminative stimuli; controlled operant with two or more discriminative stimuli; and unrestricted operant with two or more discriminative stimuli.…