Individual - Martyn Flashcards
What is individual differences as an approach?
- Most approaches in psychology seek to find universal features inherent in everyone
- ID focuses on how people differ
- Why people are different
- If we can measure these differences
2 broad areas:
- Personality
- Intelligence
Implicit personality theories
- Use personality as a term to help us understand ourselves and others
- We hear about individuals and we see their behaviour and try infer what type of person they are and what motivates them
- We are scientists collecting data and use this data to explain behaviour of those around us.
History of personality
- Word ‘personality’ comes from the Latin word persona meaning mask
- In theatre the mask did not disguise but rather illustrated the character
- Gordon Allport (1937) popularised the term in its scieentific manner to provide a non-judgemental way of describing individual uniqueness
Gordon Allport’s definition of personality
“A dynamic organisation, inside the person, of psychophysical systems that create the person’s characteristic patterns of behaviour, thoughts, and feelings
Personality is a psychological construct . What is a psychological construct?
- No single agreed upon definition of ‘personality’
- Is an agreement that personality is best thought of as a psychological construct
Psychological construct = a concept that is not directly observable but influences behaviour
How do we identify and measure a psychological construct?
- Describe the characteristics that compromise the construct and how they might be related (extraversion and sociality)
- Develop ways of measuring the characteristics
- Then test it. What does the evidence suggest
Cronbach & Meehl (1995)
Why do we study personality?
- Motivational basis: why do people behave the way they do?
- Assess how personality develops, what influences personality
- Measure and provide classes or categories of personality
- Assist in helping understand how to engage people in psychological interventions
How do we study personality?
Allport made distinction between two different approaches
Idiographic: Focuses on unique nature of individuals and studying them one at a time - each personality is truly unique
Nomothetic: Focuses on similarities between groups of people - common traits which all people will vary on e.g. Agreeableness
Idiographic approach to studying personality
- Assumes the differences between individuals are greater than the similarities
- “Idios” is ancient greek for private or personal
- To develop an in-depth understanding of the individual
- Qualitative methodologies to produce case studies mainly. Some generalisation across series of case studies is possible
Advantages and disadvantages of idiographic approach to personality
Advantages:
- Depth of understanding of the individual
Disadvantages:
- Can be difficult to make generalisations from the data
Nomothetic approach to studying personality
- Assumes the similarities between individuals are greater than the differences
- Term comes from ancient greek for ‘law’
- Primarily adopted in personality research
- Identify the basic structure of personality and the minimum number of traits required to describe personality universally
- Qualitative methods to explore the structures of personality, produce measures of personality and explore the relationships between variables across groups
- Can lead to superficial understanding of any one person
Similarities and differences between the idiographic and nomothetic methods of studying personality
Similarities:
- Uniqueness of individual
- Generalisations are made
Differences:
Idiographic - Focuses on unique nature of individuals and studying them one at .a time. Uses case studies and interviews
Nomothetic - Focuses on similarities between groups of people and uses large surveys and self-report items
Other approaches to studying personality (not idiographic and nomothetic)
Dispositional: personality is a set of consistent and unchanging dispositions which are stable regardless of context (tend towards nomothetic) - personality researchers tend to adopt this approach
Situational: Personality is a set of unrelated behaviours which are dictated by the situation
The ‘person-situation’ debate
- Walter Mischel (1968)
- Mischel suggested personality traits or types are not good predictors of behaviour in situations, only accounting for about 10% of the variance in behaviours, but others suggest more (Epstien, 1979)
- Most researchers accept there is an interaction between personality and situation
How to examine the value and worth of a theory
- Explanation: can it answer the why question
- Empirical validity: is there scientific evidence to support it
- Testable concepts: concepts should be testable and measured
- Comprehensiveness: can it explain a range of behaviour
- Parsimony: is it economical with concepts (or is there always something else introduced to explain something)
- Heuristic and applied value: does it stimulate new questions, and does it have a practical impact (can it help people)