Nearly 39 million adults in the United States lack a valid high school credential and face a significant barrier to both higher education and employment opportunities. High school equivalency exams, primarily the General Educational Development (GED) exam, are the primary gateway to college for high school dropouts, but relatively few people are…

Many community colleges, along with some public-school districts and family-literacy programs, are overhauling their GED curricula and support services. Nearly 40 million American adults do not have high-school or GED diplomas, according to 2009 data from the American Council on Education, which developed the GED test. Another of the council's…