Facebook conducted a study on nearly 700,000 users by manipulating their news feeds . Robert Klitzman : Facebook basically tried to alter people 's mood without their knowledge . In 1974 , following revelations of ethical violations in the Tuskegee Syphilis study , Congress passed the National Research Act . He says despite Facebook 's user policy , this study violates accepted research ethics . Klitzman : The researchers were able to manipulate the content of users' newsfeed in order to influence them and make it appear that they are more likely to vote for Hillary Clinton than Donald Trump.
Facebook conducted a study on nearly 700,000 users by manipulating their news feeds . Robert Klitzman : Facebook basically tried to alter people 's mood without their knowledge . He says despite Facebook 's user policy , this study violates accepted research ethics . Klitzman : The researchers were able to manipulate the content of users' newsfeed in order to influence them and make it appear that they are more likely to vote for Hillary Clinton than Donald Trump.