Women Don't Ask

HR Oops!

This section in the book talks about how men were landing more desirable and higher paying jobs then women with the same education and it was discovered that it was because women simply didn’t ask for higher pay and better jobs. They seemed to be satisfied with what they were offered. Further studies showed that women, who did ask for the same things as men in this regard, were viewed negatively. There was an exception to women being viewed negatively when asking for more and that was when women were dealing with another woman.

My question is: 

If more research was conducted, would it have found that women don't ask because they know how they will be perceived if they did?