Getting your player ready...
Facebook has tightened its research guidelines following the uproar over the disclosure that it allowed researchers to manipulate users’ feeds to see if they could change their mood. At issue was a weeklong study in which Facebook allowed researchers to manipulate the content that appeared in the “news feed” of a small fraction of the social network’s users. Researchers wanted to see if people’s moods could spread like an “emotional contagion” depending on what they were reading. Facebook said in the past three months it has given researchers clearer guidelines on research procedures.
