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.
Macbeth according to Wilson Knight is a study in evil and darkness. The witches are the agents of evil and foul in the play. To the witches fair and foul are same. As Satan in Milton regarded âEvilâ as his âGoodâ, the witches too regarded âfoulâ is their âfairâ.