A group of responses with varying topography that produce the same effect on the environment.

• A. Repertoire
• B. Response Class
• C. Replication
• D. Response Generalization

Answer: (B)

A response class is a group of responses that share the same function, even though their forms may differ. The description given—multiple responses with varying topography that produce the same effect on the environment—fits this idea exactly. For example, to obtain attention, a child might shout, cry, or tap the desk. Each behavior looks different, but the consequence is the same, so these actions belong to the same response class. This differs from a repertoire, which is the entire set of behaviors a person can perform, and from response generalization, which concerns the transfer of control to similar, untrained responses after training. Replication isn’t the concept described here.