Classroom settings and the behavioral expectations of formal schooling are more of an evolutionary mismatch for boys than girls because of sex differences in physical activity levels and social relations. This results in boys being disproportionately identified as having behavioral difficulties.

Classroom settings and the behavioral expectations of formal schooling are more of an evolutionary mismatch for boys than girls because of sex differences in physical activity levels and social relations. This results in boys being disproportionately identified as having behavioral difficulties.