It is not due “in part” to how men and women are socialized. It is due entirely to how men and women are socialized. Oh, but “psychology” says men are the funniest? Well, I guess we’re done here! It certainly couldn’t be that women just shut up and laugh because we’re trained from birth that we’re supposed to be pleasant, pliable, and inoffensive, and that we should pander to men at all times lest we be labeled an undesirable. No, the obvious explanation is that every time a woman tries to tell a joke, an invisible dream-catcher telescopes out of her vagina and snatches it from the air. Science.