Jay Zagorsky, a scientist at Ohio State, says the dumb blond jokes have real-world implications.
Stereotypes, he says, have an impact on hiring, promotions, and other social interactions.
The same went for blonde men--by the way--not dumber.
Blonde women had an average IQ of 103.2 in the study. Women with brown hair rated 102.7, 101.2 for red heads, and 100.5 for those with black hair.
Interestingly, they also found that blondes grew up in homes with more reading material...
Hmmm..also interestingly, they estimated that 3.5% of the subjects said they were natural blondes but probably were not based on statistics.
Lie about hair color? At least they didn't check.