Published: 16-09-2011, 13:54

Otis-Lennon School Ability Tests - American Education

A group intelligence test developed in 1936 by psychologist Arthur Otis (1886–1964) and made up of short, objective questions to permit quick administration and scoring. Revised in 1954, it was based on many principles of the Stanford Binet Scale of Intelligence and has replaced the STANFORD-BINET INTELLIGENCE TEST as the standard intelligence test for schoolchildren in much of the United States. Originally called the Quick Scoring Mental Ability Test, it consisted of three batteries: the Alpha, for grades 1–4; Beta, for grades 4–9; and Gamma, for grades 9–13.

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