Is the success of charter schools an illusion? Critics claim charters merely skim the best students, whose parents care enough to apply, while pushing out troublemakers. So it’s worth noting a new study showing that often test scores improve for all students when charters increase their market share.
The Thomas B. Fordham Institute examined 21 urban school districts with at least 2,500 black students per grade from 2009-2015. As the “black charter market share” rises in the study to 50% from zero, the associated educational gain is 0.8 grade level in English and 0.7 in math. This bump is for all black students in the district, whether they attend a charter or not.