The Lynda video explained that there are several research studies that provide theories to explain why women earn less than men. Which of the following factors are supported by research?

Women aren't sure what is negotiable or when to negotiate.

Women are not always expected to negotiate but men are expected to$.$

Women are not as skilled at communicating as men.

Women who negotiate can be perceived as pushy, greedy, or demanding.

Women can negotiate for others beter than on their own behalf.

Women believe that negotiating can cause confrontation.

Women don't work as hard as men.