Who headed a committee that developed the Army Alpha and Army Beta tests?

The Army Alpha and Army Beta tests were developed under the leadership of Robert Yerkes, who was a prominent psychologist and the president of the American Psychological Association. These tests were designed during World War I to assess the cognitive abilities of soldiers. The Army Alpha test was a verbal test for literate soldiers, while the Army Beta test was non-verbal and intended for those who were illiterate or non-English speakers.

Yerkes’ role was pivotal in recognizing the need for standardized testing methods to evaluate recruits quickly and effectively, thereby influencing future developments in psychological testing and assessment. His work laid the groundwork for the field of psychometrics and the use of psychological tests in various settings beyond the military.