(TIME) After Facebook revealed that it secretly toyed with some users’ emotions for a science experiment, Chief Operating Officer Sheryl Sandberg has offered something of an apology.
“This was part of ongoing research companies do to test different products, and that was what it was; it was poorly communicated,” Sandberg said during a meeting with potential advertisers in India, according to the Wall Street Journal. “And for that communication we apologize. We never meant to upset you.”
Note that Sandberg did not say sorry for the study itself, which involved seeing if users became unhappier when they saw a greater proportion of negative posts, or happier when they saw more positive posts. (They did, in both cases.)
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