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© McGraw-Hill
Theories of PersonalitySeventh Edition
By Jess Feist and Gregory J. Feist
© 2009 by The McGraw-Hill Companies, Inc. All rights reserved
© McGraw-Hill
Introduction to Personality Theory
Chapter 1
© 2009 by The McGraw-Hill Companies, Inc. All rights reserved
© McGraw-Hill
Outline
• What Is Personality?
• What Is Theory?– Theory Defined
• Why Different Theories?
• What Makes a Theory Useful?
• Dimensions for a Concept of Humanity
• Research in Personality Theory
© McGraw-Hill
What Is Personality?
• Word stems from “persona” – Latin for “mask”
• Personality Defined: – A pattern of relatively permanent traits and
unique characteristics that give both consistency and individuality to a person’s behavior
© McGraw-Hill
What Is Personality?
• Traits– Consistency over time– Individual differences in behavior– Stability across situations
• Characteristics– Unique qualities (e.g., temperament, physique,
and intelligence)
© McGraw-Hill
What Is a Theory?
• Theory Defined– A set of related assumptions that allows
scientists to use logical deductive reasoning to formulate testable hypotheses
© McGraw-Hill
Theory and Its Relatives• Philosophy
– Broader than theory
• Speculation– Must be tied to empirical data and science
• Hypothesis– Specific guess that can be tested using scientific method
• Taxonomy– Classification according to natural relationships
© McGraw-Hill
Why Different Theories?
• Different Personal Backgrounds– Childhood experiences– Interpersonal relationships
• Different Philosophical Orientations
• Unique Ways of Looking at the World
• Data Chosen to Observe is Different
© McGraw-Hill
Theorists’ Personalities & Their Theories of Personality
• Psychology of Science– The empirical study of scientific thought and
behavior (including theory construction) of the scientist
• The personalities and psychology of different theorists influence the kinds of theories that they develop
© McGraw-Hill
What Makes a Theory Useful: Criteria for Evaluating a Theory
• Generates Research
• Is Falsifiable (Verifiable)
• Organizes Known Data
• Guides Action (Practical)
• Is Internally Consistent
• Is Parsimonious
© McGraw-Hill
Dimensions for a Concept of Humanity
• Determinism v. Free Choice• Pessimism v. Optimism• Causality v. Teleology• Conscious v. Unconscious Determinants of
Behavior• Biological v. Social Influences on
Personality• Uniqueness v. Similarities
© McGraw-Hill
Research in Personality Theory
• Must Generate Research– Theory gives meaning to data– Data comes from experimental research
designed to test hypothesis generated by the theory
• Systematic observations– Predictions are consistent and accurate
© McGraw-Hill
Research in Personality Theory
• Two Empirical Criteria for Instruments– Reliability
• Consistency of Measurement
– Validity: • Construct Validity
– Convergent
– Divergent
– Discriminant
• Predictive Validity