Max power ability in males versus females

In another note to this;

The women seem to learn the medball throws more quickly than the men and show improvement in them. I have noticed that the women are becoming more efficient in using their legs while many of the men are still trying to use their arms.

Might be just a confidence thing, the women might be less worried about throwing “hard” and more concerned with throwing “well”…

Any physiological reasoning for this? or purely psychological…?