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Everything We Know About Facebook’s Secret Mood Manipulation Experiment
Posted By admin On June 30, 2014 @ 5:34 am In Sci Tech | Comments Disabled
The Atlantic 
June 30, 2014
Facebook’s News Feed—the main list of status updates, messages, and photos you see when you open Facebook on your computer or phone—is not a perfect mirror of the world.
But few users expect that Facebook would change their News Feed in order to manipulate their emotional state.
We now know that’s exactly what happened two years ago. For one week in January 2012, data scientists skewed what almost 700,000 Facebook users saw when they logged into its service. Some people were shown content with a preponderance of happy and positive words; some were shown content analyzed as sadder than average. And when the week was over, these manipulated users were more likely to post either especially positive or negative words themselves.
This tinkering was just revealed as part of a new study , published in the prestigious Proceedings of the National Academy of Sciences. Many previous studies have used Facebook data to examine “emotional contagion,” as this one did. This study is different because, while other studies have observed Facebook user data, this one set out to manipulate it.
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URLs in this post:
 The Atlantic: http://www.theatlantic.com/technology/archive/2014/06/everything-we-know-about-facebooks-secret-mood-manipulation-experiment/373648/
 a new study: http://www.pnas.org/content/111/24/8788.full
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