For most of history, questions about the mind belonged to philosophy — argued from the armchair, without data. Psychology became a science the moment researchers began measuring behavior and mental processes instead of merely reasoning about them.
The conventional starting point is 1879, when Wilhelm Wundt opened the first psychology laboratory in Leipzig, Germany. Wundt trained people in introspection — the structured self-report of conscious experience. Introspection proved unreliable (two trained observers often reported different inner experiences), but the decisive move was treating the mind as something you could bring into a lab and study systematically.
Wundt's student Edward Titchener carried the approach to the United States and named it structuralism — the attempt to break consciousness into its basic elements, the way a chemist breaks a compound into atoms. Pushing back came functionalism, associated with William James, whose 1890 text The Principles of Psychology shaped the field for decades. Influenced by Darwin, James asked not what the elements of consciousness are but what consciousness is for — how a mental process helps an organism adapt and survive.
Learn the question and you will never mix up the lenses.
| Approach | Key figures | The question it asks |
|---|---|---|
| Psychoanalytic / psychodynamic | Freud | How do unconscious drives and childhood conflicts shape behavior? |
| Behavioral | Watson, Skinner | What observable behavior is being learned, and how (reward/punishment)? |
| Humanistic | Rogers, Maslow | How do people grow toward their full potential (self-actualization)? |
| Cognitive | — | How do people take in, process, store, and use information? |
| Biological / neuroscience | — | What in the body (brain, neurotransmitters, hormones, genes) produces this behavior? |
| Evolutionary | — | How did this behavior help ancestors survive and reproduce? |
| Sociocultural | — | How do culture, other people, and social context shape behavior? |
Sigmund Freud's psychoanalytic theory held that much of mental life happens below awareness. John B. Watson and later B. F. Skinner built behaviorism on a radical bet: study only what you can observe and measure. Carl Rogers and Abraham Maslow founded the humanistic approach in reaction to behaviorism (too mechanical) and psychoanalysis (too dark), emphasizing free will and self-actualization.
Modern psychologists rarely commit to a single lens. The biopsychosocial model holds that behavior emerges from the interaction of biological factors (genes, brain chemistry), psychological factors (thoughts, emotions, learned behaviors), and social-cultural factors (relationships, culture, norms). Depression, for instance, is typically all three interacting at once.
The old nature vs. nurture debate — how much of behavior comes from heredity versus experience — has no winner in modern psychology. The consensus is interaction: genes and environment continuously shape each other.
Psychology is a wide field. Clinical and counseling psychologists assess and treat psychological disorders. Psychiatrists are medical doctors (M.D.) who can prescribe medication — distinct from clinical psychologists, who generally cannot. Research subfields include developmental, cognitive, social, biological/physiological, and personality psychology; applied subfields include industrial-organizational (I/O) psychology (workplace behavior), educational/school psychology, and health psychology.
1. (D) Wilhelm Wundt. Wundt opened the first psychology laboratory in 1879 and studied mental processes with scientific methods. (A) Freud developed psychoanalysis decades later; (B) James wrote the influential 1890 textbook but did not found the first lab; (C) Skinner is a mid-20th-century behaviorist; (E) Titchener was Wundt's student who founded structuralism. Fix: Anchor Wundt to three things — the lab, 1879, and "psychology becomes a science."
2. (C) Break conscious experience into its basic elements. That is structuralism's defining goal. (A) is functionalism (purpose); (B) is psychoanalysis; (D) is behaviorism; (E) is humanism. Fix: Structure = parts/elements; function = purpose. Read the school's name literally.
3. (E) Evolutionary. Explaining a present tendency by its ancestral survival value is the signature of the evolutionary approach. (A) behavioral would cite reinforcement; (B) cognitive would cite thinking; (C) humanistic would cite growth; (D) sociocultural would cite culture. Fix: "Helped ancestors survive/reproduce" = evolutionary, every time.
4. (D) Behavioral. The deliberate restriction to observable, measurable responses plus reward/ignoring is behaviorism. (A) cognitive centers on internal thought; (B) psychodynamic invokes the unconscious; (C) humanistic emphasizes growth and acceptance; (E) biological invokes physical mechanisms. Fix: "Observable behavior + reward/punishment, no talk of inner states" = behavioral.
5. (E) Biological. Serotonin, genes, and brain activity are the biological approach's physical machinery. (A), (B), (C), and (D) do not center on neural, chemical, or genetic mechanisms. Fix: Body-part, chemical, or gene nouns in the explanation → biological lens.
6. (B) Psychodynamic. Reading behavior as the surfacing of an unconscious childhood conflict is Freud's territory. (A) humanistic looks forward to growth, not backward to conflict; (C) cognitive cites thinking errors; (D) behavioral cites reinforcement; (E) evolutionary cites survival value. Fix: "Unconscious" or "unresolved childhood conflict" in the stem → psychodynamic.
7. (B) Cognitive. Encoding, storage, and retrieval of information define the cognitive approach. (A) behavioral ignores internal processing; (C) psychodynamic centers on the unconscious; (D) humanistic centers on growth; (E) sociocultural centers on culture. Fix: The vocabulary is the tell — encode/store/retrieve = cognitive.
8. (A) Humanistic. Warmth, nonjudgmental acceptance, and trust in the client's drive toward self-actualization define the humanistic approach. (B) behavioral would modify behavior with rewards; (C) biological would cite chemistry; (D) psychodynamic would diagnose hidden drives; (E) cognitive would target thinking patterns. Fix: Growth-and-potential, unconditional-acceptance language = humanistic.
9. (E) The biopsychosocial model. A genetic predisposition (bio) + catastrophic thinking (psycho) + a stressful workplace (social) interacting is the model's exact definition. (A) and (C)/(D) name single schools; (B) names only one factor. Fix: Count the levels — three interacting levels (biological, psychological, social) = biopsychosocial.
10. (C) Functionalism. Asking what a mental process is for (its adaptive function), influenced by Darwin, is James's functionalism. (A) structuralism asks about elements; (B) psychoanalysis focuses on the unconscious; (D) behaviorism avoids "for what" mental questions; (E) sociocultural focuses on culture. Fix: "What is it FOR?" = function = James.
11. (A) How do cultural norms and social settings shape aggressive behavior? Cross-cultural and social-context comparison is the sociocultural approach's defining question. (B) is biological; (C) is behavioral; (D) is psychodynamic; (E) is evolutionary. Fix: Match the question to the lens — every approach IS its question, and culture/context = sociocultural.
12. (A). The cognitive approach studies mental processes rigorously through behavior and performance, avoiding structuralism's unreliable introspection — a real methodological difference. (B) is false (cognitive embraces mental processes); (C) describes behaviorism; (D) denies a real distinction; (E) is factually wrong (structuralism predates brain imaging). Fix: When two schools share a subject, separate them by their METHOD.
1. (D) Wilhelm Wundt. Wundt opened the first psychology laboratory in 1879 and studied mental processes with scientific methods. (A) Freud developed psychoanalysis decades later; (B) James wrote the influential 1890 textbook but did not found the first lab; (C) Skinner is a mid-20th-century behaviorist; (E) Titchener was Wundt's student who founded structuralism. Fix: Anchor Wundt to three things — the lab, 1879, and "psychology becomes a science."
2. (C) Break conscious experience into its basic elements. That is structuralism's defining goal. (A) is functionalism (purpose); (B) is psychoanalysis; (D) is behaviorism; (E) is humanism. Fix: Structure = parts/elements; function = purpose. Read the school's name literally.
3. (E) Evolutionary. Explaining a present tendency by its ancestral survival value is the signature of the evolutionary approach. (A) behavioral would cite reinforcement; (B) cognitive would cite thinking; (C) humanistic would cite growth; (D) sociocultural would cite culture. Fix: "Helped ancestors survive/reproduce" = evolutionary, every time.
4. (D) Behavioral. The deliberate restriction to observable, measurable responses plus reward/ignoring is behaviorism. (A) cognitive centers on internal thought; (B) psychodynamic invokes the unconscious; (C) humanistic emphasizes growth and acceptance; (E) biological invokes physical mechanisms. Fix: "Observable behavior + reward/punishment, no talk of inner states" = behavioral.
5. (E) Biological. Serotonin, genes, and brain activity are the biological approach's physical machinery. (A), (B), (C), and (D) do not center on neural, chemical, or genetic mechanisms. Fix: Body-part, chemical, or gene nouns in the explanation → biological lens.
6. (B) Psychodynamic. Reading behavior as the surfacing of an unconscious childhood conflict is Freud's territory. (A) humanistic looks forward to growth, not backward to conflict; (C) cognitive cites thinking errors; (D) behavioral cites reinforcement; (E) evolutionary cites survival value. Fix: "Unconscious" or "unresolved childhood conflict" in the stem → psychodynamic.
7. (B) Cognitive. Encoding, storage, and retrieval of information define the cognitive approach. (A) behavioral ignores internal processing; (C) psychodynamic centers on the unconscious; (D) humanistic centers on growth; (E) sociocultural centers on culture. Fix: The vocabulary is the tell — encode/store/retrieve = cognitive.
8. (A) Humanistic. Warmth, nonjudgmental acceptance, and trust in the client's drive toward self-actualization define the humanistic approach. (B) behavioral would modify behavior with rewards; (C) biological would cite chemistry; (D) psychodynamic would diagnose hidden drives; (E) cognitive would target thinking patterns. Fix: Growth-and-potential, unconditional-acceptance language = humanistic.
9. (E) The biopsychosocial model. A genetic predisposition (bio) + catastrophic thinking (psycho) + a stressful workplace (social) interacting is the model's exact definition. (A) and (C)/(D) name single schools; (B) names only one factor. Fix: Count the levels — three interacting levels (biological, psychological, social) = biopsychosocial.
10. (C) Functionalism. Asking what a mental process is for (its adaptive function), influenced by Darwin, is James's functionalism. (A) structuralism asks about elements; (B) psychoanalysis focuses on the unconscious; (D) behaviorism avoids "for what" mental questions; (E) sociocultural focuses on culture. Fix: "What is it FOR?" = function = James.
11. (A) How do cultural norms and social settings shape aggressive behavior? Cross-cultural and social-context comparison is the sociocultural approach's defining question. (B) is biological; (C) is behavioral; (D) is psychodynamic; (E) is evolutionary. Fix: Match the question to the lens — every approach IS its question, and culture/context = sociocultural.
12. (A). The cognitive approach studies mental processes rigorously through behavior and performance, avoiding structuralism's unreliable introspection — a real methodological difference. (B) is false (cognitive embraces mental processes); (C) describes behaviorism; (D) denies a real distinction; (E) is factually wrong (structuralism predates brain imaging). Fix: When two schools share a subject, separate them by their METHOD.