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As president of the American Psychological Association (APA) during World War I, Robert Yerkes played a key role in applying psychology to military efforts. He organized and led a group under the Surgeon General's Office that was responsible for developing methods to screen enlisted men, leading to the creation of the Army Alpha and Army Beta intelligence tests.

Robert Yerkes

During World War I, a group organized by Robert Yerkes under the Surgeon General’s Office (SGO) was tasked with developing methods to screen and select enlisted men for the U.S. military. This initiative resulted in the creation of the Army Alpha and Army Beta intelligence tests.

Screening of Enlisted Men in WWI

During World War I, the U.S. military faced the challenge of rapidly processing and assigning roles to a massive influx of diverse recruits. Given this historical context, which statement best analyzes the fundamental problem that Robert Yerkes and his team of psychologists were tasked with solving?

During the early 20th century, psychologists were tasked with developing a method to rapidly assess the cognitive abilities of a large, diverse population of military recruits. They created two distinct versions of an intelligence test: one that required reading and writing, and another that primarily used pictures and symbols. What is the most logical reason for this two-test approach?

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