Male executives who spoke more often than their peers were rewarded with 10 percent higher ratings of competence. When female executives spoke more than their peers, both men and women punished them with 14 percent lower ratings. As this and other research shows, women who worry that talking “too much” will cause them to be disliked are not paranoid; they are often right.

But also:

As more women enter the upper echelons of organizations, people become more accustomed to women’s contributing and leading. Professor Burris and his colleagues studied a credit union where women made up 74 percent of supervisors and 84 percent of front-line employees. Sure enough, when women spoke up there, they were more likely to be heard than men.