Question

five - year - old trevor is emotionally disturbed and refuses to communicate with anyone. to get him to speak, his teacher initially gives him candy for any utterance, then only for a clearly spoken word, and finally only for a complete sentence. the teacher is using the method ofa delayed reinforcement.b shaping.c spontaneous recovery.d secondary reinforcement.

Explanation:

Shaping involves reinforcing successive approximations of a desired behavior. Here, the teacher starts by reinforcing any utterance (a small approximation), then a clearly - spoken word (a closer approximation), and finally a complete sentence (the desired behavior). Delayed reinforcement refers to reinforcing a behavior after a time lag, which is not the case here. Spontaneous recovery is the reappearance of a previously extinguished conditioned response. Secondary reinforcement is when a neutral stimulus becomes reinforcing through association with a primary reinforcer (like money being a secondary reinforcer associated with the ability to buy primary reinforcers like food).

Answer:

B. shaping