This journal article Role Playing as a diagnostic procedure in the selection of leaders by Percival M. Symonds was written in 1946.
In the assessment program of the Office of Strategic Services a role playing test with the title "Improvisations" was used for diagnostic purposes. This test was derived from Moreno's "Psychodrama" which, although originally a therapeutic procedure, has more recently been shown to have excellent diagnostic value in sizing up a man's tendencies to take a dominant or subordinate role in a social situation, as well as his tact, resourcefulness, forcefulness, ability to take criticism and other important personal and social characteristics. In taking the test a man was asked to play a role with another man in a dramatic situation, usually involving conflict between the two men.