Columbia University’s Derald Wing Sue defines microaggressions “brief, everyday exchanges that send denigrating messages to certain individuals because of their group membership”. Yet research from Scott Lillienfeld says that the evidence for microaggressions is flimsy at best. Who’s right? Factual Feminist Christina Hoff Sommers explains.

• SCOTT LILLIENFELD’S CRITIQUE
• DERALD WING SUE’S RESPONSE