Facebook Performs Social Media Experiment on Nearly 700K Users

Facebook says thousands of users were part of a psychological study, but didn’t realize it.

For one week in 2012, the social media giant intentionally put upbeat posts on some of its users’ feeds and negative posts on others.

It found people who got bad news were slightly more likely to write negative posts.

Those who scrolled through good news responded more positively.

The study focused on 690,000 users.

Facebook says the company does research to improve the site’s content and they never collect unnecessary information.

Facebook also says users consent to the manipulation of their news feeds in its terms of service agreement. But some users say it’s not ethical.