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.
Throughout the play, whenever Macbeth shows signs of faltering, Lady Macbeth implies that he is less than a man. Macbeth exclaims that Lady Macbeth should â[b]ring forth men-children onlyâ because she is so bold and courageous (1.7.72).