This repository contains the data and analysis for the BuzzFeed News article, "Hyperpartisan Facebook Pages Are Publishing False And Misleading Information At An Alarming Rate," published October 20, 2016.

You can find a spreadsheet of all the posts, fact-check ratings, and Facebook engagement figures here. The methodology for collecting and rating the pages can be at the beginning and end of the main article.

The Facebook engagement figures were obtained from the Facebook API on October 11, 2016.

The full set of cross-tabulations can be found here.

2016-10-25 • The data and cross-tabulations in this repository have been updated to reflect the following correction to the article:

Right Wing News received a median of 91 shares on its mostly true posts, and its other posts had a median of 568 shares. We originally said it had a median of 87 shares on its mostly true posts, and its other posts had a median of 521 shares. The data for Right Wing News was recalculated after we realized we had incorrectly rated three posts from that page. One post was rated mostly false that was in fact a mixture of true and false; one was rated mostly false that actually had no factual content; and one was rated mostly false that was in fact mostly true. The graphics in this story were also updated to reflect the corrected Right Wing News totals.

2016-10-28 • The data and cross-tabulations in this repository have been updated to reflect the following correction to the article:

We subsequently corrected a fourth post from mostly false to a mixture of true and false. The graphics in this story were also updated to reflect the corrected Right Wing News totals.

Please contact Jeremy Singer-Vine at [email protected].