Most people will draw a man. Researchers investigate the consequences. This series of images emerged from a simple prompt: “Draw an effective leader.” Tina Kiefer, a professor of organizational behavior at the University of Warwick in the United Kingdom, fell upon the exercise accidentally, while leading a workshop full of executives who did not speak much English. Since then it has been adopted by organizational psychologists across the world. In terms of gender, the results are almost always the same. Both men and women almost always draw men. “Even when the drawings are gender neutral,” which is uncommon, Dr. Kiefer...