There is no gender gap in tech salaries
In most industries, women can expect to earn about 6.6% less than men, but accoding to a study by the American Association of University Women, that is not the case in the tech industry. The study, ?Graduating to a Pay Gap: The Earning of Women and Men One Year after College Graduation? controlled for variables such as the graduates? jobs choices, economic sector, hours worked, months unemployed after graduating, and GPA as well as others to find that women in seven occupational categories were paid no different than men, statistically speaking. The most equal professions were: Social Services Professionals, Administrative Assistants, Life Science Professionals, Other Healthcare Occupations, Nurses, Math/Computer/Physical Science Professionals, and Engineers. Even though these occupations may be more equal, the study still found that there is a negative correlation between the proportion of women in an occupation out of the total number of people in that occupation and that occupation?s average wages.
See "There is no gender gap in tech salaries", Cynthia Than, Quartz, March 3, 2014