Final answer:
The statement is false, as both preferences and reinforcers can be affected by satiation. The effectiveness of a reinforcer can decrease if a person becomes satiated with it. Expectation of a reward also influences the impact on intrinsic motivation.
Step-by-step explanation:
The statement claiming that preferences are subject to satiation effects, while reinforcers are not, is False. Reinforcers can also be subject to the effects of satiation. When a person is satiated with a specific reinforcer, the effectiveness of that reinforcer to modify or maintain behavior can decrease. It's important to understand that both preferences and reinforcers can become less appealing or effective after a person has been exposed to them extensively or received them in large quantities.
Research has shown that tangible rewards like money can negatively affect intrinsic motivation more so than intangible rewards like praise. Moreover, the expectation of a reward plays a crucial role. An expected extrinsic reward can reduce intrinsic motivation, but if the reward is unexpected, it generally does not diminish the intrinsic motivation.