Chart uses survey data from a December 2016 PEW Research Center report.
Chart from September 2017 PEW Research Center report on US News Sources
A November 2016 release of study results by the Stanford History Education Group indicating that K-12 and college students have difficulties identifying credible, objective, non-manipulated information online;
A PEW Research Center report (2018) on survey results showing that 68% of United States adults "at least occasionally get news on social media," even though many have concerns about its accuracy.