Educational Testing Service

Educational Testing Service (ETS), founded in 1947, is the world's largest private nonprofit educational testing and assessment organization. It is headquartered in Lawrence Township, New Jersey, but has a Princeton address. ETS develops various standardized tests primarily in the United States for K–12 and higher education, and it also administers international tests including the TOEFL (Test of English as a Foreign Language), TOEIC (Test of English for International Communication), Graduate Record Examination (GRE) General and Subject Tests, and The Praxis test Series—in more than 180 countries, and at over 9,000 locations worldwide. Many of the assessments it develops are associated with entry to US tertiary (undergraduate) and quaternary education (graduate) institutions, but it also develops K–12 statewide assessments used for accountability testing in many states, including California, Texas, Tennessee, and Virginia. In total, ETS annually administers 20 million exams in the U.S. and in 180 other countries. ETS is a U.S.-registered 501(c)(3) non-profit organization created in 1947 by three other nonprofit educational institutions: the American Council on Education (ACE), The Carnegie Foundation for the Advancement of Teaching, and The College Entrance Examination Board. ETS was formed in 1947 to take over the testing activities of its founders (whose organizations were not well suited to running operational assessment programs), and to pursue research intended to advance educational measurement and education. Among other things, ACE gave to the new organization the Cooperative Test Service and the National Teachers Examination; Carnegie gave the GRE; and the College Board turned over to ETS the operation (but not ownership) of the SAT for graduating high school students. In keeping with the purposes for which it was established, ETS developed a program of research that covered not only measurement and education but also such related areas as statistics, educational evaluation, and psychology, particularly cognitive, developmental, personality, and social psychology.

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Educational Testing Service

vignette|Ça permet de rendre pour nos rencontres.Aide également un lieu de référence pour l'apprentissage. L’Educational Testing Service (« service d’évaluation éducatif », abrégé ETS), fondé en 1947, est la plus grande organisation à but non lucratif privée de mesure et d’évaluation éducative au monde. Elle fonctionne avec un budget annuel d’environ 900 millions de dollars. Son siège social se situe à Lawrence Township, New Jersey, non loin de Princeton.

Test (évaluation)

droite|vignette|280x280px|Etudiants qui passent leurs examens au Mahatma Gandhi Seva Ashram, Jaura, en Inde. droite|vignette|280x280px|Etudiants cambodgiens qui passe un examen en vue d'une demande pour l'école technique de Don Bosco de Sihanoukville en 2008. vignette|280x280px|Etudiants américains en classe d'ordinateurs fondamentale en train de faire une évaluation sur ordinateur. Une évaluation ou test (anglicisme) ou examen (informellement examination ou exam.

Classical test theory

Classical test theory (CTT) is a body of related psychometric theory that predicts outcomes of psychological testing such as the difficulty of items or the ability of test-takers. It is a theory of testing based on the idea that a person's observed or obtained score on a test is the sum of a true score (error-free score) and an error score. Generally speaking, the aim of classical test theory is to understand and improve the reliability of psychological tests. Classical test theory may be regarded as roughly synonymous with true score theory.

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