In a Chain, a Given Stimulus Is Both an S^D

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The Answer is Consider the chain for teaching a person with developmental disabilities to put on a pair of slacks .After doing up the snap in Step 6, the last step was to do up the zipper, which was followed by a reinforcer.Therefore, the "snap done up" became an SD for "doing up the zipper" (i.e., "snap done up" was a cue in the presence of which "doing up the zipper" would be reinforced).Also, across a number of trials, "snap done up" was paired with receiving a reinforcer and would become a conditioned reinforcer for the preceding response of "doing up the snap." In other words, "snap done up" was the stimulus, which when presented after a response (doing up the snap), served to strengthen that response, and "snap done up" had that effect because of appropriate pairings with the reinforcer at the end of the chain.Thus, "snap done up" was both an S^D and a conditioned reinforcer.Any appropriate example is acceptable.

In a Chain, a Given Stimulus Is Both an SD

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In a Chain, a Given Stimulus Is Both an S^D