Choosing a school is about more than academics, and for some families, that includes deciding between single-sex and coeducational education. Research suggests that the answer may depend less on gender separation itself and more on the individual child and the school environment.
One potential benefit of single-sex education is that it may reduce gender-related distractions or stereotypes in certain academic settings. A Swiss natural experiment found that girls placed in all-female classes performed better in mathematics than girls in coeducational classes.
The researchers found an average mathematics performance increase of approximately 7–10% for girls in single-sex classes. They also reported stronger confidence in mathematical abilities, while finding no comparable difference in language grades.
However, separating students by gender can also have drawbacks. Critics argue that children benefit from learning to communicate, collaborate and form friendships with people of different genders, while single-sex environments may reinforce some of the gender divisions children will encounter outside school.
What the Research Says About Single-Sex vs. Coed Schools
A large 2024 review provides a much broader look at the debate. The researchers analyzed 677 studies, 798 effect sizes and 1,179,558 participants, examining academic achievement, communication skills and self-confidence across single-sex and coeducational settings.
The review found no statistically significant overall difference in academic achievement based solely on whether schooling was single-sex or coeducational, except in countries with lower educational-attainment levels. Students in coeducational settings, however, showed better communication skills and higher self-confidence in the overall analysis.
That means parents should be cautious about assuming that one format automatically produces better academic results. As the researchers’ findings suggest, the relationship between school structure and student outcomes is more complicated than simply separating boys and girls.
How Parents Can Choose the Right School
The Parent Practice argues that parents should focus on the child rather than searching for a universal answer. Its advice is particularly direct: “The better question is, how does a particular school treat your individual child?”
Parents should consider their child’s personality, learning style, social needs and interests, as well as the school’s teaching methods and extracurricular opportunities. Visiting both types of schools, talking with teachers and asking how the school supports different learners can provide more useful information than relying on the school’s gender structure alone.
Ultimately, single-sex and coeducational schools can offer different environments, and neither format guarantees success. The goal is to find a school where your child can feel supported, challenged and comfortable enough to develop academically and socially.
