Talk:Expectancy challenge
Latest comment: 12 years ago by Chris the Paleontologist in topic Sources
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Sources edit
This article needs to be referenced, but fortunately there appear to be many possible sources available. A Google Books search on the topic brings up many psychology books using the term. A Google Scholar search shows that many academic journals have covered the topic as well. Chris the Paleontologist (talk • contribs) 20:02, 5 April 2012 (UTC)