A couple studies indicating benefits from Khan Academy, just from a cursory search: 16% lift in overall test scores: https://www.ischool.berkeley.edu/sites/def

A couple studies indicating benefits from Khan Academy, just from a cursory search: 16% lift in overall test scores: https://www.ischool.berkeley.edu/sites/default/files/sproject_attachments/w241_final_report_does_khan_work.pdf https://www.ischool.berkeley.edu/sites/default/files/sprojec... 11% lift in math test scores: https://bearworks.missouristate.edu/cgi/viewcontent.cgi?article=4757&context=theses https://bearworks.missouristate.edu/cgi/viewcontent.cgi?arti... And Khan Academy's impact page: https://www.khanacademy.org/about/impact https://www.khanacademy.org/about/impact has links to additional studies.