You totally whiffed on this one, with regard to ambidextrousness. Most people live in one side of their brain or the other, and have a low degree of ambidextrousness. Women tend to use more of their off-side brain then men, and are more ambidextrous. Most men can only blink one eye, and women can blink either; as well as use a mascara wand with both hands.
Then you have the question of how is the ambidextrousness accomplished. For some people, the dominant brain-side works through the corpus colloseum to operate the body by enslaving the off-side brain, and for other people, both brains work together. This has been studied extensively in golf, where there is a right-brain approach to golf and a left-brain approach to golf - and there is a strong component of amdixtrousness required.
There is also the issue of there being a gender compenant of right-brain or left-brain dominance. Many people think men are more likely to be left-brain dominant, and women more likely to be right-brain dominant.
It's also complicated because of political-correctness. Studying and theorizing in these areas are complicated by political-correctness landmines.
Finally, my opinion is that women are more likely to be right-brain dominant, and need to also cultivate left-brain skills; and thus have a higher degree of true (as opposed to slave) ambidextrousness. In comparison, trans-people all lived for some time in the wrong gender, and had to (or try to) adapt. Thus, all the factors that make women more truly ambidextrous apply to trans-people. Furthermore, to learn new skills, we had to become more truly ambidextrous. So, in my opinion, trans-people have a substantially higher level of genuine amidextrousness, and your survey is going to be out of whack because it doesn't consider ambidextrousness.
Trans people are more likely to have a higher
