By the mid-twentieth century, industrial and organizational psychologists developed tests for businesses and governments to administer to prospective employees. In 1943, Stanford-trained psychologist and textbook author Floyd Leon Ruch (1903-1982) prepared this test for people applying for clerical jobs that required speed and accuracy.
For another test by F. L. Ruch (in that case with coauthors and a different publisher), and related information, see 1979.3064.08.
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