“The Daily Mail has a story about a study showing blonde women have higher IQs than brunettes or redheads. Note they reference the 1980 ASVAB and that they dropped black and hispanic women from the results.”
Daily Mail: Data for the study came from the National Longitudinal Survey of Youth 1979 (NLSY79) – a national survey of people who were between 14 and 21 years old when they were first interviewed in 1979.
In 1980, participants in the NLSY79 took the Armed Forces Qualification Test, or AFQT, which is used by the Pentagon to determine the intelligence of all recruits.
The overall AFQT score is based on word knowledge, paragraph comprehension, math knowledge and arithmetic reasoning.
In 1985, all participants were asked, ‘What is your natural hair colour?’
To eliminate any bias in the IQ tests caused by ethnic and racial differences, Jay Zagorsky from Ohio State University dropped all African Americans and Hispanics from the analysis, reducing the sample size to 10,878 white, females.
The findings showed that blonde-haired white women had an average IQ of 103.2, compared to 102.7 for those with brown hair, 101.2 for those with red hair and 100.5 for those with black hair.
