Surface traits are observable traits that are caused by source traits. They are very small factors in comparison to other traits and are only observed.

Surface Traits

These are traits that are the underlying contributions to surface traits. They are explained and are causative.

Source traits

-	Surface traits
-	Source trait
              - Ability traits
              - Temperament traits
              - Dynamic traits


Butler University

Raymond Cattell's trait theory began by narrowing down a vast list of personality descriptors to 171. A central idea of his approach is that personality is not defined by the presence or absence of traits, but by the degree to which each trait is expressed on a continuum. He proposed that all individuals possess the same fundamental traits, with personal uniqueness arising from their different levels of expression. Through factor analysis, he identified 16 core personality dimensions and developed the 16PF assessment to measure them, viewing personality as a means to predict behavior.

Cattell’s Theory of Personality

Olson, Matthew H., et al. An Introduction to Theories of Personality. 9th ed., Pearson, 2020. 

Reference

Cattell’s Certain Types of Traits

* Warmth
* Reasoning
* Emotional stability
* Dominance
* Liveliness
* Rule-consciousness
* Social boldness
* Sensitivity
* Vigilance
* Abstractedness
* Privateness
* Apprehension
* Openness to change
* Self-reliance
* Perfectionism
* Tension

Cattell's 16 Factors of Personality

A psychologist is designing a new personality assessment based on the core principles of Raymond Cattell's trait theory. Which of the following methodologies best aligns with Cattell's fundamental view of personality?

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