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Roger Thomas Lennon

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Roger Thomas Lennon developed intelligence measures for the army (group-administered tests titled the Army Alpha (for literates) and the Army Beta (for illiterates). Arthur Sinton Otis developed them further to improve cost and time efficiency as compared to one developed by Alfred Binet (1857–1911), which was individually administered. Given in multiple-choice format and administered in groups, 1.7 million World War I recruits took the Army Alpha test. The results were published in 1921 and included the relative performance of recruits of different national origins.

He was a doctoral student under Lewis Terman.

Lennon (1916–1986) was an executive and head of the testing division of Harcourt Brace Jovanovich as well as a chairman of one of its subsidiaries, The Psychological Corporation. Later he became a senior vice president of the publishing house. He retired in 1981 as associate to the chairman.

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