of grant money targeted to this question. If the government is giving you money, saying we want you to answer this question, and this is all people know how to do, then they’re going to answer that question whichever way they know how. So that provides some incentive,’ explains Jay Kaufman. It would be the same if funding agencies suddenly began collecting data by hair colour as well as by race and gender. You would be almost certain to see studies suggesting biological differences between people with brown hair and blonde hair. Just having the data invites comparisons.
