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Five Factor Model
A model of personality traits proposed by McCrae and Costa, influenced by the work of Cattell, that identifies five core dimensions of personality.
16 PF
A personality test developed by Cattell using factor analysis to measure 16 primary personality factors.
Source Traits vs Surface Traits
Cattell's distinction between underlying, stable traits (source traits) and observable, superficial traits (surface traits).
L data
Personality data based on observations of an individual by others, typically from secondary sources.
Q data
Self-reported personality data obtained directly from the individual, considered a primary source of information.
T data
Data used to measure an individual's performance, such as intelligence or reaction time.
Temperament
Refers to how a person typically behaves or responds in various situations.
Motivation
The driving force behind a person's behavior or actions.
Ability
The capacity or skill level determining how well and how quickly a person can perform tasks.
Factor Analysis
A statistical method used to identify underlying factors or dimensions among a set of observed variables, as employed by Cattell in his research on personality traits.
