1. • An individual’s unique constellation of
consistent behavioural traits.
• Durable disposition to behave in a
particular way in a variety of situations.
• Common Personality traits : Honest,
Moody, Friendly, Impulsive

2. BIG FIVE PERSONALITY MODEL
Robert McCrae and Paul Costa

3. EXTRAVERSION
• Captures the comfort
level with relationships
• Open
• More Accessible
• Outgoing
• Sociable
• Affectionate

4. AGREEABLENESS
• Tendency to get along
with others
• Co-operative
• Trusting
• Warm
• Likable
• Care about others

5. CONSCIENTIOUSNESS
• Measure of reliability
• Organized
• Self Disciplined
• Scrupulous
• Careful
• Preserving

6. NEGATIVE AFFECTIVITY
• Tendency to experience
negative emotions &
moods
• Unemotional
• Even tempered
• Comfortable
• Calm
• Secure

7. OPENNESS TO EXPERIENCE
• Tendency to be original
• Broad Interests
• Imaginative
• Curious
• Original
• Daring
• Risk Takers

8. SIGNIFICANCE
• Establishment of a
taxonomy that
demonstrates order in a
previously scattered
and disorganized field
• Influence from both
heredity & environment
(in almost equal
proportions)

9. WEAKNESSES
• Not powerful in
predicting & explaining
actual behaviour
• Does not explain all of
human personality
• Data driven, not theory
driven
• Not fully orthogonal
• Relies on self report
questionnaires and self
report bias

10. RESEARCH IS ON……..
• Are five factors the right
ones?
• Which factors predict
what?
• Make a model on
personality