Active learning methods narrowed the achievement gaps significantly in both exam scores and passing rates between overrepresented and underrepresented student groups.

Read the summary here: https://phys.org/news/2020-03-underrepresented-college-students-benefit-techniques.html

And the original article here: https://www.pnas.org/content/pnas/early/2020/03/03/1916903117.full.pdf