[moistgorilla]

If you already objectively know that the person is qualified the fact that they are attractive is only a plus. I think the study you a mentioning is done with people that do not know the qualifications of the person they are viewing.

[glaak]

True, it is done with people whose qualifications are unknown. However, I would find it very hard to believe that the bias against attractive women in a "masculine" field would be removed as soon as you knew the qualifications. Diminished a bit? Sure. But removed? Unlikely. Your initial assumptions will give you a lens through which you view someone's accomplishments.