Girls much quicker than boys at timed tasks

I know for fact that my wife and my female co-workers get routine tasks done quicker than I do. A new study of 8,000 people age 2 to 90 found females handle timed tasks more quickly than males. The difference is most pronounced among pre-teens and teenagers. On the portions of standardized tests that reflected processing speed, and among those age 14-18 in the study sample, girls scored 8.1% higher than boys. However researcher made it clear that the study did not reveal significant overall intelligence difference by gender, and "to truly understand a person's overall ability, it is important to also look at performance in un-timed situations".

Source: Intelligence, May-June, 2006.