The Educational Testing Service (ETS) is a nonprofit organization based in the United States that develops and administers standardized tests. Founded in 1947, ETS is best known for creating assessments like the SAT and the GRE, which are widely used for college admissions and graduate school applications, respectively. The organization aims to improve education and learning through research and assessment. ETS also provides various services, including test preparation resources and educational research. It works with educational institutions, governments, and organizations to enhance the quality of education and ensure fair testing practices. Through its assessments, ETS seeks to measure knowledge and skills effectively.