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Yeah but I mean it's quite plausible. There aren't many woman in IT, so I guess those who are, try to be especially careful, efficient etc. On the other hand there are these biases...

In fact this matches an observation an acquaintance of mine of is Post doc in the Physics department made. He is giving courses at University for small groups, that go with the lecture course where students get there corrected exercises and present them. So he said that women in those courses are more or less the only ones motivated and actually being interested in the stuff and that the exercises are also better.

I guess this doesn't have much to do with biology and Google Echo chambers etc but rather that people are aware of biases and counteract them.