Reinforcement  

Oleh:

Lieberman, David A.

Jenis: Article from Books - E-Book
Dalam koleksi: Human Learning and Memory, page 140-183.
Topik: Thorndike’s Law of Effect; Reinforcer; Delay of Reinforcement; Schedules of Reinforcement; Motivation; Role of the Stimulus; A Preliminary Application
Fulltext: Reinforcement.pdf (460.91KB)

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One of the most obvious ways to encourage a behavior is to reward it. Parents praise children’s good behavior; companies pay salespeople bonuses for high output; universities promote productive researchers. There is nothing new or profound about the idea of using rewards to encourage behavior – the principle was probably known and used long before the discovery of ?re. If the principle of reward is so obvious, though, why is behavior often so hard to change? Why do parents ?nd it so dif?cult to get their teenage children to clean their rooms? Or, to take a more immediately relevant example, why do students sometimes ?nd it so dif?cult to make themselves study? There are, after all, very powerful rewards for studying: in the short term, good course grades; in the longer term, a better job. Yet students often leave studying until the last minute, and some don’t get around to it even then. Similarly, smoking and overeating can take years off our lives, and people are often desperate to give up these habits; yet the habits persist. Why is behavior in these situations apparently so irrational, when rewards as potent as a good job and longer life have little effect? Clearly, the principle of reward cannot be quite as simple as it sounds. To understand why rewards seem to control behavior in some situations but not others, we will examine experimental research into the principles that determine the effectiveness of rewards. Then, in Chapter 5, we will examine some of the attempts that have been made to apply the principles discovered in the laboratory in real life, and what these attempts have revealed about both the strengths and the weaknesses of rewards as a tool for altering behavior. We will begin, though, with the ?rst experimental study of rewards, by Edward Lee Thorndike.

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