Rather than promoting gender equality, single-gender classrooms create greater divides between boys and girls. Evidence Drag into one of the empty spots above. A study in the journal Psychological Bulletin found that, on average, single-gender schools do not provide students with a better education than mixed-gender schools. By creating single-gender schools, educators send the message that girls and boys learn in fundamentally different ways and should therefore be separated. Juliet A. Williams, author and gender studies professor at UCLA, reports that “single-[gender] public school initiatives . . . [reinforce] damaging gender stereotypes.”