The psychologists Daniel Kahneman and Amos Tversky described the following situation: The instructors in a flight school adopted a policy of consistent positive reinforce- ment recommended by psychologists. They verbally reinforced each successful exe- cution of a flight maneuver. After some experience with this training approach, the instructors claimed that contrary to psychological doctrine, high praise for good execution of complex maneuvers typically results in a decrement of performance on the next try. Is there a simpler explanation for the decreased performance following praise? (Hint: This is the regression chapter, so it probably has something to do with that.)

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