PSY230H5 Lecture Notes - Lecture 9: Self-Perception Theory, Observational Error, Extraversion And Introversion
Document Summary
Scientific relevance fundamental assumption of personality psych: personality traits are stable. Retest interval: the time interval bw two assessments of personality (ex// one month, one year, etc) The longer the restest interval, the more time is given for change to occur, thus stability dec. Stability: retest correlations over longer time period (year) True stability: retest correlations over longer time periods adjusted for unreliability. Meta analysis: a meta-analysis combines results of several original studies. Original studies: method assessed personality traits repeatedly over longer time intervals (at least one year apart) Data in the meta-analysis: 3127 correlation coeff from 152 longitudinal studies of personality. Researchers wonder if personality is like plaster: malleable in the beginning but once fixed, can"t do anything about it. Why are retest correlations not r = 1. 00. Reduces correlations even if personality has not changed. Temporary changes due to transient situational influences (ex// bad hair day)
