Your Opinion of You - 2015-09-09
British psychologists who took the OCA in London and Edinburgh, answering the questions randomly, received "remarkably similar profiles" with uniformly low scores; they concluded that the test was rigged to produce a negative result, and that it was "a device of no worth."
This positivity contrasts sharply with another of the 20th century's longest-lived personality tests: the Oxford Capacity Analysis. The origins of the OCA are disputed, but all accounts agree that it was developed in the early 1950s at the behest of Scientology founder L. Ron Hubbard. Hubbard was fascinated by intelligence and personality tests, which were then very much in the scientific mainstream. In 1950, his Dianetic Research Foundation ran a battery of tests—including the Minnesota Multiphasic Personality Inventory, the California Test of Mental Maturity, and the Johnson Temperament Analysis—to try to establish the beneficial effects of dianetic auditing. (The results were inconclusive.)