Boys with Longer Ring Fingers are Better at Math

slashthedot writes "While it is well known that boys have longer ring fingers as compared to index fingers, now some researchers say that the longer the ring finger ratio to index finger, the better boys are at math. In girls, the shorter the ring finger to index finger ratio, the better is their verbal skills. 'The link, according to the researchers, is that testosterone levels in the womb influence both finger length and brain development.'"

Comments

Re:Flaky?

[flynt]

Because the 95% confidence level means you are allowing a 5% chance of finding a correlation where one doesn't actually exist. This is called a Type I error in hypothesis testing. If you do 20 tests, each with a 5% chance of a type I error, the expected number of times that you incorrectly reject the null hypothesis is 1.