AP Psychology Unit 12: History and Approaches:

Pioneers of Psychology

  1. Mary Whiton Calkins - First female APA president; studied memory and self-psychology.

  2. Charles Darwin - Proposed evolutionary theory (natural selection); influenced evolutionary psychology.

  3. Dorothea Dix - Reformed mental asylums; advocated for humane treatment of patients.

  4. Sigmund Freud - Founded psychoanalysis; emphasized unconscious drives and childhood experiences.

  5. G. Stanley Hall - First APA president; pioneered child development research.

  6. William James - Wrote Principles of Psychology; functionalism founder (studied purpose of behavior).

  7. Ivan Pavlov - Discovered classical conditioning (dogs salivating at bell).

  8. Jean Piaget - Studied cognitive development in children (stages of learning).

  9. Carl Rogers - Humanistic psychologist; emphasized client-centered therapy.

  10. B.F. Skinner - Behaviorist; researched operant conditioning (reinforcement/punishment).

  11. Margaret Floy Washburn - First female psychology Ph.D.; studied animal cognition.

  12. Edward Titchener - Structuralism founder (analyzed conscious experience via introspection).

  13. Max Wertheimer - Gestalt psychology founder (whole > sum of parts).

  14. John Locke - Philosopher; proposed tabula rasa (mind as blank slate).

  15. John Watson - Behaviorism founder; "Little Albert" experiment.

  16. Wilhelm Wundt - "Father of psychology"; opened first psych lab (1879).


Core Concepts

  1. Psychology - Science of behavior and mental processes.

  • a. Origins: Philosophy + physiology; Wundt’s lab (1879).

  • b. Psychologists vs. Psychiatrists:

    • Psychologists: PhD/PsyD; no medical degree (therapy/research).

    • Psychiatrists: MD; prescribe meds + therapy.


Subfields of Psychology

  1. Biological Psychologist - Studies brain-behavior links (e.g., neurotransmitters).

  2. Cognitive Psychologist - Researches thinking, memory, problem-solving.

  3. Experimental Psychologist - Conducts lab studies on behavior/cognition.

  • a. Basic Research - Expands knowledge (e.g., memory studies).

  • b. Applied Research - Solves practical problems (e.g., UX design).

  1. Personality Psychologist - Studies traits/individual differences.

  2. Clinical Psychologist - Diagnoses/treats mental disorders (therapy).

  3. Counseling Psychologist - Helps with life challenges (e.g., career stress).

  4. Social Psychologist - Studies group behavior/attitudes.

  5. Industrial-Organizational (I/O) Psychologist - Improves workplace productivity.

  • a. Human Factors Psychology - Designs user-friendly tools/tech.

  1. Forensic Psychologist - Applies psychology to legal issues.

  2. Evolutionary Psychologist - Explores adaptive behaviors (Darwinian perspective).

  3. Environmental Psychologist - Studies human-environment interactions.

  4. Social-Cultural Psychologist - Examines culture’s impact on behavior.

  5. Sports Psychologist - Enhances athletic performance/mental focus.

  6. Developmental Psychologist - Studies lifespan changes (child → adult).

  7. Educational Psychologist - Researches learning/teaching methods.

  • a. School Psychologist - Supports student mental health/learning.

  1. Psychometric Psychologist - Designs psychological tests (e.g., IQ tests).


Key Debates

  1. Stability-Change Issue - Do traits persist or evolve over time?

  2. Diversity-Universality Issue - Are behaviors culture-specific or universal?

  3. Nature-Nurture Issue - Genes vs. environment in shaping behavior.


Perspectives of Psychology

  1. Biological (Neuroscience) Perspective

    • Focus: Examines how physiological processes—such as brain structures, neurotransmitters, hormones, and genetics—influence behavior and mental states.

    • Example: Investigating how imbalances in neurotransmitters like serotonin affect mood disorders.​

  2. Behavioral Perspective

    • Focus: Centers on observable behaviors and the ways they're learned through interactions with the environment, emphasizing conditioning.

    • Example: Studying how positive reinforcement can encourage desired behaviors.​Fiveable

  3. Cognitive Perspective

    • Focus: Explores internal mental processes such as perception, memory, thinking, and problem-solving.

    • Example: Analyzing how memory retrieval works and why we forget information.​Fiveable

  4. Humanistic Perspective

    • Focus: Emphasizes personal growth, self-actualization, and free will, highlighting the inherent goodness and potential of individuals.

    • Example: Encouraging clients to achieve their full potential through self-exploration.​

  5. Psychodynamic (Psychoanalytic) Perspective

    • Focus: Investigates how unconscious drives, early childhood experiences, and inner conflicts shape behavior.

    • Example: Exploring how repressed childhood traumas influence adult relationships.​

  6. Evolutionary Perspective

    • Focus: Applies principles of natural selection to understand the development of behaviors and mental processes.

    • Example: Examining how fear responses may have evolved to protect humans from danger.​

  7. Sociocultural Perspective

    • Focus: Looks at how social and cultural environments influence behavior and mental processes.

    • Example: Studying how cultural norms affect attitudes toward mental health.​

  8. Biopsychosocial Perspective

    • Focus: Integrates biological, psychological, and social factors to provide a comprehensive understanding of behavior and mental processes.

    • Example: Assessing how genetics, personal coping mechanisms, and social support contribute to depression.