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One way to boost achievement in math, researchers say, is to avoid mention of innate skill and stress that math can be learned. Another is to expose children to adults with different areas of expertise, and offer a wide variety of activities and books. Gaps are smaller when extracurricular activities are less dominated by one gender.
In the furor that followed, Facebook’s leaders said that the kind of access exploited by Cambridge in 2014 was cut off by the next year, when Facebook prohibited developers from collecting information from users’ friends. But the company officials did not disclose that Facebook had exempted the makers of cellphones, tablets and other hardware from such restrictions.
At a time when Facebook, Twitter and Google are grappling with an epidemic of political manipulation and fake news, Devumi’s fake followers also serve as phantom foot soldiers in political battles online. Devumi’s customers include both avid supporters and fervent critics of President Trump, and both liberal cable pundits and a reporter at the alt-right bastion Breitbart.