In 2000, three psychologists presented a paper titled “Peer Crowd-Based Identities and Adjustment: Pathways of Jocks, Princesses, Brains, Basket-Cases, and Criminals,” which asked a large sample of tenth-graders which of the five characters from The Breakfast Club they most considered themselves to be, and then checked back in with them at 24. The categories were “immensely predictive,” according to Jacquelynne Eccles, one of the authors.