In 1936 Gordon Allport and H. S. Odbert hypothesized that:
Those individual differences that are most salient and socially relevant in people’s lives will eventually become encoded into their language; the more important such a difference, the more likely is it to become expressed as a single word.
This statement has become known as the Lexical Hypothesis.
Allport and Odbert had worked through two of the most comprehensive dictionaries of the English language available at the time, and extracted 18,000 personality-describing words. From this gigantic list they extracted 4500 personality-describing adjectives which they considered to describe observable and relatively permanent traits.
In 1946 Raymond Cattell used the emerging technology …show more content…
Although subsequent research has failed to replicate his results, and it has been shown that he retained too many factors, the current 16PF takes these findings into account and is considered to be a very good test. In 1963, W.T. Norman replicated Cattell’s work and suggested that five factors would be sufficient.
Hiatus in research
For the next seventeen years, the changing Zeitgeist made the publication of personality research difficult. Social psychologists argued that behavior is not stable, but varies with context, so that predicting behavior by personality test was impossible. They further argued that character, or personality, is something humans impose on people in order to maintain an illusion of consistency in the world. Furthermore, Walter Mischel in his 1968 book Psychological Assessment asserted that personality tests could not predict behavior with a correlation of more than 0.3.
Around 1980, three developments brought personality research into the modern era: personal computers, statistical aggregation, and the Big