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Facebook cracks down on its own human experiements

Facebook cracks down on its own human experiements
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Facebook has given itself new restrictions on using its own system for human research experiments.

The firm today tightened its guidelines following the incredible user outrage when the company said its researchers tried to manipulate user moods by adjusting news feed content.

The experiment touched about 1 in 2,500 users - about 700,000 people. During the experiment, negative posts were intentionally withheld to see if it generated a more positive environment. Then Facebook tried the opposite.

Researchers found that when positive expressions were reduced, people produced less positive posts and more negative ones. And when negative posts were reduced, results completely flipped.

While Facebook found that they could influence user mood trends, its secret experiment went largely unappreciated.

Next page: New changes to Facebook research policy
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