The Aptitude Research Project tests of divergent thinking were produced by the Southern California Aptitude Research Project. Test items include writing a series of words containing a specified letter as fast as possible (word fluency), writing titles for short-story plots as fast as possible, (ideational fluency, originality), writing words similar in meaning to a given word as fast as possible, (associational fluency), writing sentences containing words beginning with given letters as fast as possible (expressional fluency), and listing different consequences of a hypothetical situation. These tests received considerable attention from intelligence and psychometric researchers in the 1960s and 1970s but have been largely deemphasized since this time. (devised by Joy Paul Guilford and associates in the 1950s to 1980s)
ARP TESTS: "The ARP Tests were devised as a way to measure divergent thinking, and were comprised of many different tasks. "