What Is Personality Psychology? A Simple Definition and the Main Approaches

Personality psychology is the study of the patterns in how people think, feel, and behave, and how those patterns differ from person to person. It asks questions such as why one person enjoys meeting strangers while another prefers quiet time, and how biology, experience, and situations shape those tendencies.

What is personality in psychology?

In psychology, personality refers to a person's characteristic patterns of thinking, feeling, and behaving. These patterns tend to show some consistency over time, but they are not identical in every situation.

For example, a generally outgoing person may enjoy group conversations but still feel quiet at a formal interview. Personality describes a tendency; it does not predict every individual action.

What does personality psychology study?

Personality psychologists study how people differ, how their characteristics develop, and how those characteristics relate to behavior. They also ask which patterns people share and how situations and culture affect their expression.

Researchers may study traits such as conscientiousness, motivations such as the desire to achieve, or beliefs about one's ability to handle challenges. They also investigate the interplay of inherited influences and life experiences. For more detail, see how biological and environmental factors shape personality.

What are theories of personality in psychology?

Personality theories are frameworks for describing or explaining why people show particular patterns. Each approach emphasizes different influences:

• Trait: Describes personality using dimensions such as the Big Five: openness, conscientiousness, extraversion, agreeableness, and neuroticism.
• Biological: Examines influences such as genetics, temperament, and the nervous system.
• Psychodynamic: Considers unconscious processes, early relationships, and internal conflicts; Freud's psychoanalytic theory is one example.
• Behavioral and learning: Focuses on how reinforcement, consequences, and observation shape behavior.
• Cognitive and social-cognitive: Examines how beliefs, expectations, and interpretations interact with behavior and surroundings.
• Humanistic: Emphasizes subjective experience, personal growth, and the development of the self.

These approaches can offer different perspectives on the same behavior rather than a single complete explanation. Explore them further in the major personality theories.

How do you study personality psychology?

Start by learning the main approaches, then compare how each would explain a familiar behavior. For example, a trait account might describe a student's consistent tendency to plan ahead, while a learning account might examine how rewards and past experiences encouraged planning.

Researchers study personality using methods such as questionnaires, observations, interviews, and studies that follow people over time. A useful measure should be reliable, producing reasonably consistent results, and valid, measuring what it claims to measure. Self-reports can be useful, but responses may be affected by memory or a desire to appear favorable.

What do you learn in psychology of personality?

A personality psychology class can cover theories, research methods, assessment, and the roles of biology, culture, and experience. Students also practice applying theories to examples and evaluating their strengths and limits.

The table summarizes the UPI Study Psychology of Personality course and its requirements.

Which colleges list Psychology of Personality on an equivalency chart?

These colleges show Psychology of Personality (Psychology 300) on their equivalency charts with UPI Study. Open a college for its full chart.

See the rest of the equivalency on the Psychology of Personality course page, or open a college above for its full chart. ACE and NCCRS have over 2,100 cooperating colleges that will consider accepting credits; the final decision is with the universities.

Frequently Asked Questions about Personality Psychology

Final Thoughts on Personality Psychology

To get started, choose one everyday behavior and compare how two personality theories would explain it. Then look for research that tests those explanations rather than treating any single theory as the whole story.