Boys’ dominance just about endures in maths: at age 15 they are, on average, the equivalent of three months’ schooling ahead of girls. In science the results are fairly even.
But in reading, where girls have been ahead for some time, a gulf has appeared. In all 64 countries and economies in the study, girls outperform boys. The average gap is equivalent to an extra year of schooling.
Figure 1: : Gender differences (boys – girls) in student performance in reading, mathematics and science in PISA 2012
Source: OECD family database.
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