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As Data Overflows Online, Researchers Grapple With Ethics

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Jeffrey T. Hancock, Cornell University

Professor Jeffrey T. Hancock was a co-author of the Facebook study in which the social network quietly manipulated the news feeds of nearly 700,000 people to learn how the changes affected their emotions.

Credit: Heather Ainsworth for The New York Times

Scholars are exhilarated by the prospect of tapping into the vast troves of personal data collected by Facebook, Google, Amazon, and a host of start-ups, which they say could transform social science research.

From The New York Times
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