PSYCH 2B03 Lecture : Lecture 25 PSYCH 2B03.docx
8 Feb 2014
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Eysenck: different amount of arousal based on different amount stimulus sent from the reticular formation to the cortex. Trait theory is the most influential in the context of academic research. Dominance has nothing to do with what is more accurate/better: dominance is based on quantification. Best described as positions along a trait dimension. Need to narrow down to basic, fundamental traits. Give list of traits to people and have them describe themselves/others using the traits listed based on how important/relevant those traits are. Will find that some of these traits are connected: eg. kindness + honesty. Diagram: trait a is 0. 5 correlated with b, etc. Because they are measuring the same underlying thing (factor) The numerical associations determine how much the underlying factor contributes to the specific trait being measured: factor loadings. Factor analysis provides a mathematical method for accounting for the correlations. Different factors may take into consideration the same traits (eg. both share a,c) and are therefore non-orthogonal.
