Facebook says it was “unprepared” for the ruckus stirred up about its emotional contagion research. Chief Technology Officer Mike Schroepfer said the company was “prepared for the comments and criticism” Facebook said it plans to change research methodology in these ways: Researchers are to be given clearer guidelines, and future studies dealing with deeply personal topics will go through an enhanced review process before research can begin. Facebook has added research education to its six-week training bootcamp for new engineers.”]