Does the data actually show that women working in research produce less accurate results than male researchers? Without seeing any solid evidence I feel oblige

Does the data actually show that women working in research produce less accurate results than male researchers? Without seeing any solid evidence I feel obliged to be skeptical of this. Furthermore not every field diversified at the same rate or during the same time period. If what you're suggesting is true, I would expect to see a correlation between when a field diversified and when the quality of that research fell. Even if there are other factors in play, if the signal is there you should be able to measure it. And if the signal is immeasurable then I think it may as well not be there.