|Corr I 329
Personality traits/hierarchy/causality/Neuroscience: Personality traits are arranged hierarchically, with correlated groups of more specific traits categorized together in broader traits. For example, the lower-level traits of talkativeness, assertiveness, enthusiasm and sociability are all grouped within the trait of Extraversion. A key premise of the factor-analytic approach is that specific traits fall within the same larger factor because of some shared underlying cause (Haig 2005)(1). Though this cause need not be exclusively biological, the correlational structure of traits provides a useful clue for personality neuroscience.
1. Haig, B. D. 2005. Exploratory factor analysis, theory generation, and scientific method, Multivariate Behavioural Research 40: 303–29
Colin G. DeYoung and Jeremy R. Gray, „ Personality neuroscience: explaining individual differences in affect, behaviour and cognition“, in: Corr, Ph. J. & Matthews, G. (eds.) 2009. The Cambridge handbook of Personality Psychology. New York: Cambridge University Press_____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. The note [Author1]Vs[Author2] or [Author]Vs[term] is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.
Philip J. Corr
The Cambridge Handbook of Personality Psychology New York 2009