Good point again. Indeed sex itself does not tell a lot about how someone is behaving. In general, both sexes have their own specific dominating characteristics. But this does not say anything for each individual. But in the end they all have to work together, somehow, and the group dynamics will start to play a role. A group of 150 people may not be the right size to apply statistics, but with lets say 50% of them being men and 50% being women, the collective of the whole group would be a mix of the generalities we know are dominant by men and dominant by women. PhD: well, that doesn't say a lot as well. I know quite a few people who are in their tunnel of expertise and are not able to be a generalist and therefore are not able to look across the board, and beyond their own tunnel. It would also be not so 'democratic' to set criteria, whether that be education level, behavioural criteria, ethnic background or even sex.