"When I compared 4- and 5-year-old boys and girls who had the same levels of behaviour problems - including difficulty sustaining attention, regulating emotions, delaying gratification, and forming positive relationships with teachers and peers - I found that boys were less likely to learn and more likely to be held back in school," said Jayanti Owens from Brown University in the US.
Researchers found that relative to other early childhood family and health factors, gender differences in both students' behaviour and educators' responses to behaviour problems explained more than half (59.4 per cent) of the gender gap in schooling completed among adults.
The study examined how systematic responses to children's behaviour at school vary by gender and help determine overall educational attainment, which is closely linked to success in adulthood.
Researchers drew on a national sample of children born to women in their early to mid-20s in the 1980s and followed into adulthood.
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"That boys typically have worse behaviours when they start school may help explain why their behaviours are more detrimental to achievement - stereotypes about boys' bad behaviour may cause educators to take more and harsher actions against male students," Owens said.
"This process may lead to a compounding and cyclical relationship between boys' behaviour problems and lower achievement," she added.
According to Owens, typically boys and girls have divergent experiences at school.
Researchers found that in elementary school, boys on average report significantly greater exposure to negative school environments and peer pressure compared to girls.
In high school, boys report significantly higher rates of grade repetition (by 4.5 percentage points) and lower educational expectations, researchers said.
"My findings are broadly consistent with the notion that many school environments are not conducive to boys' success," said Owens.
The findings were published in the journal Sociology of Education.