Boys aren't doing as well at school as girls because they think studying isn't 'manly' enough.
According to research, boys at county schools also reckon that one of the best ways to look cool to their friends is by arguing with teachers.
It's a different story at private schools, where children's parents pay for their lessons.
The boys there aren't embarrassed to be seen to be studying hard, perhaps because they want to give their parents value for money.
The study, called Young Masculinities, also said that too often boys were being pushed into sport and other 'manly' activities rather than making the choice for themselves.
Do you think studying's for cissies? Get voting by clicking on the link top right