PSYC 305 Lecture Notes - Lecture 3: Cluster Analysis, Longitudinal Study
Document Summary
Categorical vs. dimensional approach to personality ( types ): assumes large between-type. Most users of mbti use median score to determine categories. As a result, low test-retest reliability across studies not within. A note on personality types vs. traits: dimensionally. The big 5 traits are defined, conceptualized, measured, analyzed, and interpreted/described. But, in an analysis of 1. 5 million adults across 4 datasets, gerlach et al. (2018) found evidence of 4 personality types (using cluster analysis): average, self-centered, reserved, role model. Personality psychologists will never be good at predicting single acts, single occasions of behavior. Aggregation: implies that traits refer to that person"s average level of experience or behavior or states. 2)contextual factors are important and also numerous! Still, psychology"s ability to generate successful predictions far exceeds chance. Refers to an individual"s position within a group. Refers to the average level of a population; normative increases or decreases over time.
