One of the results of Cattell's application of factor analysis was his discovery of no fewer than 16 separate primary trait factors within the normal personality sphere alone (based on the trait lexicon).attell applied multivariate research methods across several intrapersonal psychological domains: the trait constructs (both normal and abnormal) of personality, motivational or dynamic traits, emotional and mood states, as well as the diverse array of cognitive abilities.
A: The line fair is foul and foul is fair is from the play Macbeth by William Shakespeare, and it means that what appears to be beautiful is actually ugly, and vice versa. The play centers around themes of deception.
run foul /afoul of. 1. To run into; collide with: a sloop that had run foul of the submerged reef. 2. To come into conflict with: a pickpocket who ran foul of the law.