You May Have Been A Lab Rat In A Huge Facebook Experiment

A newly published paper reveals that scientists at Facebook conducted a massive psychological experiment on hundreds of thousands of users by tweaking their feeds and measuring how they felt afterward. In other words, Facebook decided to try to manipulate some people's emotional states -- for science. The research involved Facebook's News Feed -- the stream of status updates, photos and news articles that appears when you first fire up the site. ...

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