Monday, November 23, 2009

How light or dark is Barack Obama's skin? Woops, I can see now the fault in this research. Can you see the problem? Heard it on NPR, but the photos..


How light or dark is Barack Obama's skin? Depends on your political stance... : Not Exactly Rocket Science: "In the early days of the last US elections, Hillary Clinton's campaign was accused of deliberately darkening Barack Obama's skin in a TV ad. The implication was that by highlighting Obama's 'blackness', Clinton's camp was trying to exploit negative associations that voters might have with darker skin. But you don't need editing software to do that - a fascinating new study suggest that people literally change the way they see a mixed-race politician, depending on whether the candidate represents their own political views.
Liberal American students tend to think that lighter photos of Barack Obama are more typical of him, while conservatives think he's best represented by darker photos. You can see this effect even after adjusting for any racial prejudices, be they hidden or overt, and even with a person less famous than Obama. And regardless of political views, people who associated Obama with lightened photos were most likely to vote for him."

They prove nothing. The researchers should have used the SAME photo and just changed the skin color of Obama. These contrasting photos have too much differences to be valid. My Comment: BS - Bad Science.

I have NOW been corrected by a reader... I have so few. Thank you.
Each Photo above was presented to the testee with corresponding Light, Normal, and Dark version. Much better design with a odd number of poses to sort out.
Truely, BED - Better Experimental Design.

This comes from using Secondary Sources for information!

FD

2 comments:

Unknown said...

The Light photo shows a causual, smiling obama. The Dark photo shows a "slick", smiling political Obama... They should have used the SAME PHOTO with just the skin color changes to do the experiment with, this is a freshman mistake!

BAD SCIENCE - BS!

Anonymous said...

If you take some time to read the paper - each photo had 3 versions: light, dark, and unaltered.

Each participant saw one light, one dark, and one unaltered image - each with a different pose. The design was actually quite clever, and allows elimination of interactions between skin tone and pose. This is a much richer data set.

Not BS at all. Instead, I'd have to rate it GED. (Great Experimental Design)