The pay gap has been recognized for years as evidence of gender disparity, sparking a discussion during the second presidential election.
Mitt Romney's now oft-quoted line about "binders full of women," refers to his request as Massachusetts governor to review female applicants for a cabinet position.
The American Association of University Women (AAUW) analyzed the most recent data from the Department of Education to study college graduates one year after leaving college who were working full-time.
The sample included 15,000 students who received a bachelor degree between July 1, 2007 and June 30, 2008 and who responded to a survey in 2009.
