AP PSYCHOLOGY

Detailed explanation-1: -Raymond Cattell was an influential psychologist who developed new analytic techniques that allowed for more nuanced empirical measurements of the components of personality and intelligence.

Detailed explanation-2: -Cattell’s Sixteen Personality Factor Model has been greatly criticized by many researchers, mainly because of the inability of replication. More than likely, during Cattell’s factor analysis errors in computation occurred resulting in skewed data, thus the inability to replicate.

Detailed explanation-3: -Contributions to Psychology Cattell is well-known for his 16 personality factors, in which he and numerous colleagues utilized factor analysis to identify 16 different fundamental components of personality. He subsequently developed the 16PF Personality Questionnaire, which is still widely used today.

Detailed explanation-4: -Cattell theorized the existence of fluid and crystallized intelligence to explain human cognitive ability, investigated changes in Gf and Gc over the lifespan, and constructed the Culture Fair Intelligence Test to minimize the bias of written language and cultural background in intelligence testing.