The study from eight researchers posted through Brown University’s Annenberg Institute also found that the gains were particularly pronounced for Black and Hispanic students, and for those who were among the lowest-performing and economically disadvantaged.
“What really matters is, what is it that these schools were doing?” said Joseph Waddington of the Institute for Educational Initiatives at the University of Notre Dame, one of eight authors of the study. “We’re not so much interested in telling a story of how did this sector (perform) versus the other sector — we want to understand why. We want to understand the variation.”