What is personality?
Individual’s characteristic style of thought, behaviours, and feeling
Personality - Idiographic approach
Study of individuals
Personality - nomothetic approach
Study of common trends in the population
Study of personality has two main components, which are:
2 ways to measure personality?
Measuring personality - personality inventories
Personality tests/scales
Criterias of personality inventories
What is validity?
A test measures what it says it measures
What is reliability?
A test produces the same results each time
Most online personality tests have…
very low validity and reliability
What test is widely regarded as a clinically valid personality test?
Minnesota Multiphasic Personality Inventory (MMPI)
Why use true/false/can’t answer questions in personality tests?
Some criticisms of personality inventories?
Examples of personality theories
Personality approach - Trait biological approach
attempts to describe personalities as a series of traits
What are traits?
A relatively stable disposition to behave in a
particular and consistent way
Steps of trait-biological approach
Personality approach - The Big Five (trait-biological approach)
Personality traits are…
relatively stable and stability increases across lifespan
Stability increases across the lifespan means that…
Our rank-order in personality traits stay mostly the same, especially as we get older –> also called rank-order stability
Some change in the Trait-biological approach occurs, such as:
Changes in trait-biologial approach - Mean-level changes
Although our rank-order remains fairly consistent, the mean levels of traits in our cohort change
Changes in trait-biologial approach - Intraindividual change
Intraindividual change is usually more rare, it occurs after … experiences, such as …
life changing experiences, such as trauma