The
Berman Institute of Bioethics's
bulletin called my attention to this
New York Times article about this
PLoS Biology article, and all I can think is, whatever happened to peer review?
Sure, one interpretation is that
Stephen Jay Gould just made it up. I'm not going to say that's impossible.
But let me get this straight: we're testing the hypothesis that a priori biases can affect supposedly objective scientific observation by...making scientific observations and assuming they're objective?
This entire paper hinges on the premise that, sure, racism may have existed way back in the 19th century, but certainly we modern scientists have no a priori biases that could possibly influence our own measurements. The experimental design to test Gould's premise is built entirely around assuming the premise is incorrect.
This paper doesn't prove that the biases don't exist, they're just showing that they're reproducible, which is not at all unreasonable: racism isn't just an individual's opinion, it's a system incorporated structurally into our society.
Fortunately, science has invented a way to get around this problem (or at least try to). It's called blinding your data. Instead of picking a skull out of the bin labeled "African" and then measuring it (which appears to be how this study was done), could you at least have one person take the skull out of the bin, slap an identifying code onto it, and then hand it to a second person, who makes the actual measurement (and doesn't know which bin it came out of)?. This only partially avoids the problem (because you might still be able to guess by looking at the skull what ethnicity it comes from), but the authors didn't even do that much.
PLoS Biology, I'm not impressed.