ABSTRACT
Students from co-educational schools were matched with those from single-sex schools on population of school area (four categories), sex, social class, university institution, average grades, best subject and number of attempts in the Advanced level examination. For social class the matching and also the balancing had to be relaxed on a somewhat larger scale, resulting in a slightly smaller proportion of the co-educated than of the single-sex educated being from the higher social classes. This chapter presents the comparisons of the performance of the two groups in the examinations at the end of the first year at the university. In the arts faculty the students from co-educational and single-sex schools make virtually the same average progress, the negligible superiority of the students from single-sex schools being clearly highly unreliable statistically and of no practical importance.
