That’s the case in Britain, as girls push even further ahead on national tests.
From the BBC article:
Boys dropped further behind girls at the top grade, with just 19.6% of their exam entries awarded A* or A, compared with 26.5% for girls. Last year there was a difference of 5.7 percentage points and this year it is 6.7. Andrew Hall, director general of AQA exam boards, said examiners were "scratching their heads" over the acceleration in the trend of two decades - especially as the gap is narrowing at A-level. "There will be something there about boys and girls maturing at different rates," he added.