The genesis of the research was Belle’s 10-year-old granddaughter, who was given the riddle by her mom. (The results were no different for an alternate version of the riddle: a mother is killed, her daughter sent to the hospital, and a nurse declines to attend to the patient because “that girl is my daughter” few people guessed that the nurse might be the child’s father.) Self-described feminists did better, she says, but even so, 78 percent did not say the surgeon was the mother. For example, the BU student cohort, where women outnumbered men two-to-one, typically had mothers who were employed or were doctors-“and yet they had so much difficulty with this riddle,” says Belle. Curiously, life experiences that might suggest the mom answer “had no association with how one performed on the riddle,” Wapman says. In both groups, only a small minority of subjects-15 percent of the children and 14 percent of the BU students-came up with the mom’s-the-surgeon answer. (They did the latter study through the Undergraduate Research Opportunities Program (UROP).)
The researchers ran the riddle by two groups: 197 BU psychology students and 103 children, ages 7 to 17, from Brookline summer camps. In research conducted by Mikaela Wapman (CAS’14) and Deborah Belle, a College of Arts & Sciences psychology professor, even young people and self-described feminists tended to overlook the possibility that the surgeon in the riddle was a she. But did you also guess the surgeon could be the boy’s mother? If not, you’re part of a surprising majority. If you guessed that the surgeon is the boy’s gay, second father, you get a point for enlightenment, at least outside the Bible Belt. The son is rushed to the hospital just as he’s about to go under the knife, the surgeon says, “I can’t operate-that boy is my son!” Explain. If you haven’t heard it, give yourself time to answer before reading past this paragraph: a father and son are in a horrible car crash that kills the dad.