The General Educational Development (GED) is a series of standardized tests assessing high school-level proficiency in four core subjects—reasoning through language arts, mathematical reasoning, science, and social studies—awarding a credential intended as an equivalency to a traditional high school diploma for those who did not complete secondary education.[1][2]
Initiated by the American Council on Education in 1942 to certify World War II veterans' pre-service education levels, the program expanded in the postwar era under the GED Testing Service (established 1963) to serve broader adult populations seeking vocational or postsecondary opportunities.[3][4]
By providing a structured pathway for skill validation without requiring classroom attendance, the GED has certified over 20 million recipients, facilitating access to employment, military service, and higher education for many dropouts.[5]
However, rigorous empirical analyses reveal that GED attainment yields minimal causal improvements in earnings, employment stability, or health outcomes compared to non-credentialed dropouts, often functioning more as a low-barrier signal than a robust substitute for formal graduation, with evidence suggesting it may even incentivize premature high school exit in some contexts.[6][7][8]
Historical Development
Inception and Early Purpose
The General Educational Development (GED) tests originated in 1942 amid World War II, when the United States Armed Forces Institute (USAFI), in collaboration with the American Council on Education (ACE), sought to address the educational disruptions faced by over 10 million service members who had enlisted before completing high school.[4][9] This initiative responded to projections that up to 50% of enlistees lacked high school diplomas, creating barriers to postwar reintegration, including access to higher education and civilian jobs.[10]The early purpose centered on validating the non-traditional learning acquired by veterans through military service and self-study, rather than replicating standard high school curricula. An ACE advisory committee, chaired by University of Chicago educator Ralph W. Tyler, selected and adapted five examinations from the Iowa Tests of Educational Development to measure competencies in areas such as correct social usage, interpretation of reading materials, and background in natural and social sciences.[11] These tests aimed to certify "general educational development" equivalent to the twelfth grade, facilitating college admissions for qualified veterans without requiring full high school reenrollment.[12]By 1944, the program had administered over 1,500 tests, primarily to wounded or discharged personnel, establishing it as a targeted tool for military-affiliated adults rather than a broad public alternative to diplomas.[13] This veteran-focused framework reflected postwar policy priorities, including the Servicemen's Readjustment Act of 1944 (GI Bill), which emphasized rapid educational credentialing to support economic recovery.[14]
Expansion and Key Milestones
The GED program expanded beyond its initial focus on World War II veterans in 1947, when New York became the first state to authorize civilians, including school dropouts, to pursue the credential through testing.[15] This marked a shift from military-specific equivalency to broader adult education, driven by efforts from the American Council on Education (ACE) to secure state-level recognition amid postwar labor demands and educational gaps.[12] Other states gradually followed, with adoption accelerating in the 1950s as evidence mounted that GED holders demonstrated competencies comparable to traditional high school graduates, facilitating workforce reintegration and further training.[4]By the early 1970s, all 50 states had incorporated the GED as an official high school equivalency, representing a key milestone in nationwide standardization and accessibility.