publication date: Thursday, July 19, 2007 (part of Round XXX)

category: Science

clue: If the site tells you "Congratulations! Your guess was correct," you're only going to want to guess another goo.

explanation: Skinner developed operant conditioning, a model of psychology in which behavior (such as guessing goos) is reinforced through a reward or positive outcome (such as congratulations). more…

solved by: Russ Wilhelm, Steve West, Justin Woods, Joanna Woods, Matthew Preston, Steve Dunn, Amy Austin, and Elliot Farney


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