La bailarina, de nuevo

En este post de hace unos dias puse el link a un test en donde se podia ver girar a una bailarina hacia un lado o hacia otro dependendiendo- segun la teoria de left-right brain- de que parte del cerebro usaramos mas.

El profesor de U Chicago Steven Levitt hizo lo propio y recolecto, a traves de su blog, data referente al sentido en el que la gente veia girar la bailarina y la profesion respectiva (economics, hard sciences, engineering/math/computer science, non-economics social scientists, and the humanities.). Estos son algunos de los resultados que encontro Levitt (tengan presente que el sample size es mas bien pequeño):

"The theory, I think, would predict that economists, engineers, and scientists would likely be dominated by left-brain thinkers who see her spinning counter-clockwise, whereas humanists and non-economics social scientists would have more right-brain thinkers. Here’s how the numbers actually break down as to who initially sees her spinning counter-clockwise among Freakonomics blog readers. The higher this number, the more rational you are supposed to be (with the number of observations in parentheses):

Engineers/mathematicians/computer programmers: 21.8% (N=55)
Economists: 26.7% (N=60)
Scientists: 31.0% (N=29)
Social Scientists: 36.2% (N=47)
Humanities: 42.9% (N=28)

Admittedly, these are not large sample sizes, but the results could hardly be more off from the theory’s apparent predictions. Ironically, it appears that the theory does have some power to order people as to how logical they might be — you just have to reverse your interpretation of which direction of spin corresponds to right-brained thinking. Perhaps the author of the article just got confused?"

Aca esta el articulo completo de S. Levitt.