Given the high rate of vodka consumption in Russia, it would be important to establish a neutral control group. This could be done by taking American college students (many other groups would do, but these would be conveniently located and able/willing to engage in the testing process) and submitting them to a series of encounters which consisted of inebriating doses of vodka followed by sexual advances.
This would of course be explained to them as being in the interests of the greater good of mankind including it's essential relationship to whether the planet was going to burn up from global warming.
The results of this testing process could then be compared to Russian women in their native habitat, after adjusting the Russian group for similar age, educational levels, body type, hair color, and other statistically relevant factors.
so you prefer blondes too? :O)
http://www.youtube.com/watch?v=Lcdmq07u2T8