ABSTRACT
An overall comparison having been made between the attainment of pupils in single-sex and co-educational maintained grammar schools, this chapter focuses on a critical examination of research into the differences between the same groups in two individual subjects. The co-educated boys were superior to the boys in boys' schools in eight out of nine tests, and Cameron comments that the presence of girls in the classroom had evidently had no detrimental effect on the attainment of the boys. Almost all the boys in both types of school were candidates in mathematics. In mathematics, however, regard must be paid to an important variable—the distribution of well-qualified teachers of mathematics in co-educational, boys' and girls' schools. Throughout the researches there is a clear superiority of co-educated boys over boys in boys' schools, in spite of the former being handicapped by being of lower social class status and probably of lower intelligence.
