Can exposure to high-achieving boys or girls have long-term impacts on a student’s behavior, decision making, and academic success? A new study of more than 10,000 students examines the influence of gender composition in middle and high school classrooms.

Co-author and Cornell University researcher Angela Cools discusses her findings – which include notable effects on female students – and some important takeaways.

Featured research: Angela Cools, Raquel Fernández, and Eleonora Patacchini. “Girls, Boys, and High Achievers.” NBER Working Paper No. 25763 April 2019