Raymond Cattell describes Kevin as a funny and sarcastic guy upon first meeting him. Funny and sarcastic would be examples of traits, whereas his overall level of sociability would be considered a(n) trait. a) source; individualisticb) central; cardinalc) surface; sourced) central; source

Surface and Source

Explanation:

Raymond Cattell was able to distinguish between source and surface traits. Surface traits can easily be known, these traits are very obvious and can be effortlessly identified by other people, meanwhile, source traits are less visible to other people and appear to be the basis for several different aspects of behaviour.

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