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Lecture 15

Lecture 15.docx

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McGill University
PSYC 332
Richard Koestner

Lecture 15: 2013/02/28 Questions of the day: 1) How much does personality change over the adult years? The big 5 traits are not changeable Other kinds of personality characteristics are changeable 2) How much do the Big 5 traits change from age 20 to age 40? In terms of rank order, does not change much In terms of your level, it will go up in positive way However, some life events can change 3) How much will the Big 5 traits change thereafter? Mostly C and A Examples of the Big 5 Source of Controversy - The longitudinal stability of Adult personality by Paul Costa and Robert McCrae (1998) - Alternative title: Your personality? You’re stuck with it! - Results  N 0.83 E 0.82 O 0.83 A 0.63 C 0.79  However, other studies proved that A is also has high correlation  High correlation between stability and the big 5 traits  This referring to rank order stability - Problem with this study  Average age was 45  Age 18-30 is where all the things happening - Challenge this notion Possible Questions on different kinds of stability and different kinds of changes - How likely are people to change their rank order on major traits as they get older?  This is where you have to think about yourself related to group  Differential continuity: Your rank order standing related to the group - How much do people generally change in their basic personality traits as they get older?  Absolute continuity  About the group Bruce’s Life from 7 to 49 Maybe stability depends on time of first assessment - Once you reach the age of 45, you are not going to change very much in your relative placement to other people (Differential continuity will be high) - More flexibility, chance to be changed - This study suggests that it matters what age we are talking about - After the age of 30, the big 5 traits (where we rank in relative to others) are set in stone. Before age of 30, there can rank order change How about the other kind of change? (Group norm, absolute continuity) - By Brent Roberts 2007 - Meta-analysis of 92 studies; - Normative change in Big 5 traits across the lifespan The theoretical Test (Based on N.A samples) - Coast and McRae predicted no group level change - Roberts predicted there is group level change and due
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