Final answer:
The assertion that behavior decreases more quickly after extinction following continuous reinforcement is true, due to the expected reward not materializing after being consistently given previously.
Step-by-step explanation:
The statement that behavior will decrease more quickly when extinction is used following continuous reinforcement is true. Continuous reinforcement involves rewarding a behavior every time it occurs. Consequently, when the reinforcement stops, the behavior that was being reinforced is no longer rewarded and therefore is likely to decrease rapidly. This is because the subject has learned to expect a reward each time and, upon not receiving it, will quickly abandon the behavior. In contrast, with a variable ratio schedule, where the reinforcement is less predictable, extinction will occur more slowly because the subject has learned that the reward does not come every time.