New at @techpolicypress: Researchers at GWU and Johns Hopkins have released a preprint study that appears to show evidence of the limited efficacy of Facebook's interventions on vaccine misinformation in its pages and groups. techpolicy.press/researchers-fi…
The study asked four key questions, and used CrowdTangle to source samples of material from pages and groups before and after a Facebook policy on vaccine misinformation announced on February 8, 2021. 
Perhaps the most significant observation is that while Facebook “appears to have had success in curtailing some anti-vaccine content” after the implementation of its policy, “anti-vaccine content recovered during our period of observation.” techpolicy.press/researchers-fi…
Authors @Broniatowski, @gu_jiayan, @AMJAMAMJAM1 and @lorien_a point to the need for “external, transparent evaluations" of platform data to develop better solutions: techpolicy.press/researchers-fi…
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