Bland de bästa matematikerna dominerar pojkar

Den uppmärksammade studien i Science, som påstås visa att flickor och pojkar är lika bra på matematik, visar inte alls det. Som professor Alex Tabarrok klargör:

”All of these reports and many more like them are false. In fact, consistent with many earlier studies …, what this study found was that the ratio of male to female variance in ability was positive and significant, in other words we can expect that there will be more math geniuses and more dullards, among males than among females. … But what the authors don’t tell you is that the gender ratio will get larger the higher the percentile. … If you do the same type of calculation as the authors but now look at the expected gender ratio at 4 standard deviations from the mean you find a ratio of more than 3:1, i.e. just over 75 men for every 25 women should be expected at say a top-25 math or physics department on the basis of math ability alone.”

Rätt ska vara rätt. Som Alex påpekar innebär inte detta att det inte förekommer diskriminering mot kvinnor, men det innebär också att en lägre andel kvinnor inte med automatik innebär diskriminering.