“A recently published study that manipulated Facebook News Feeds has sparked outrage among users who are criticizing the ethics behind the experiment, which was conducted by Facebook and several universities.
“Researchers tweaked the feeds of 689,003 users to show a disproportionate number of positive or negative statuses for one week in January 2012.
“They found that the emotions of others on your News Feed can affect your mood, and published the results in the journal PNAS (Proceedings of the National Academy of Sciences).
“However, the researchers did not inform users that they were manipulating News Feeds, and many questioned the study’s ethics.”
