1 Introduction to Psychology · 1.1 Introduction to psychology

1.1.1 Psychology: nature, history, schools, branches and social problems

Psychology is the scientific study of behaviour and mental processes; it became a laboratory science with Wundt at Leipzig in 1879, grew through rival schools, now works in many fields (clinical, counselling, school, forensic, industrial and more) and is applied to social problems such as violence, discrimination, poverty and delinquency.

  • APPSC Paper I
  • Standard level
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Core facts

  • Word, first use, the soul → behaviour journey, Wundt, James, Thorndike and the "fathers" list: see EDU-PS-01. This note adds the degree-level points.
  • Woodworth: psychology is the scientific study of the activities of the individual in relation to the environment.
  • Morgan and King: psychology is the science of human and animal behaviour, and it includes applying that science to human problems.
  • Baron: the science of behaviour and cognitive processes.
  • NCERT: the study of mental processes, experiences and behaviour in different contexts.
  • McDougall: the positive science of conduct and behaviour; Watson: the science of behaviour (1913).
  • Nature: a science (systematic, empirical, objective, open to checking) that is both a biological / natural science (brain, nerves, hormones) and a social science (people in groups and cultures). APPSC 2023 keyed social science.
  • Milestones: Fechner, Elements of Psychophysics (1860) → Wundt's laboratory, Leipzig (1879: scientific psychology begins) → Ebbinghaus on memory (1885) → William James, Principles (1890) → APA founded (1892, G. Stanley Hall first president) → Witmer's first psychological clinic (1896) → Freud, Interpretation of Dreams (1900) → Binet–Simon scale (1905), the first intelligence test → Watson's behaviourism (1913).
  • India: first department of experimental psychology and laboratory at Calcutta University, 1915 (N.N. Sengupta); Girindrasekhar Bose founded the Indian Psychoanalytical Society (1922).
  • Schools (seven named by APPSC): structuralism, functionalism, behaviourism, Gestalt, psychoanalysis, humanistic, cognitive.
SchoolFounderFocusMain method
StructuralismWundt, TitchenerElements of consciousnessTrained introspection
FunctionalismWilliam James, DeweyUse of the mind in adaptingIntrospection + observation
BehaviourismJ.B. WatsonObservable behaviour, S–RExperiment, conditioning
GestaltWertheimer, Köhler, KoffkaWholes, perception, insightExperiment (phenomenological)
PsychoanalysisSigmund FreudUnconscious conflictsFree association, dream analysis
HumanisticMaslow, RogersGrowth, self-actualisation, free willCase study, client interview
CognitiveNeisser, PiagetThinking, memory, information processingExperiment, computer models
  • Fields, one line each: clinical (diagnose and treat mental disorders), counselling (everyday adjustment problems of normal people), school (work inside schools: testing, learning and behaviour problems), educational (theory of teaching and learning), forensic (law, courts, offenders, police), evolutionary (how evolution shaped behaviour), industrial-organisational (people at work: selection, training, morale), developmental (change across the lifespan), social (individual in groups), health, community, environmental, sports, cognitive, biological / physiological.
  • Violence (WHO typology): self-directed (on oneself: suicide, self-harm), interpersonal (family / intimate partner and community), collective (by groups: war, riots, state violence).
  • Racism: unfair treatment of people because of their race or skin colour. Discrimination is the behaviour; prejudice the attitude; stereotype the belief.

Explained

1. Reading a definition question. The two most-asked definitions differ in what they stress.

AuthorKey wordsWhat it adds
Woodworthactivities of the individual, environmentBehaviour always happens in relation to surroundings
Morgan & Kinghuman and animal behaviour, applicationAnimals included; applying psychology is part of it
Baronbehaviour and cognitive processesInner processes are studied too
NCERTmental processes, experience, behaviour, contextsExperience (subjective) and context matter

Behaviour is any response that can be observed or measured (walking, speaking, a change in heart rate). Mental processes are inner activities (thinking, remembering, feeling) known through behaviour and self-report. Experience is the person's own awareness of a state.

2. Nature of psychology.

  • A science: uses systematic methods (observation, experiment, tests), tests hypotheses and accepts only findings others can repeat.
  • Natural and social: biological roots (neurons, hormones, genes) and social roots (family, culture, groups). This is why some boards place it in science faculties and others in arts.
  • Positive, not normative: it describes behaviour as it is; it does not set moral rules (contrast ethics).
  • Pure and applied: pure psychology builds theory (general, experimental, physiological); applied psychology uses it (clinical, industrial, educational, forensic).
  • Its data are relative: behaviour depends on the person and the setting, so laws are probabilistic, not exact like physics.

3. Scope. Psychology studies the whole range of behaviour: of children, adults and the old; of normal and abnormal people; of individuals and groups; of humans and animals; in the laboratory and in daily life (home, school, work, court, hospital).

4. Milestones in context. The year to remember is 1879: Wundt's laboratory turned psychology from philosophy into a laboratory science (APPSC 2023 asked "scientific psychology was first accepted in"). Binet (with Simon, 1905) built the first intelligence test to identify French schoolchildren who needed special help; Terman's Stanford–Binet (1916) made the IQ popular. Witmer (1896, University of Pennsylvania) opened the first psychological clinic and is called the founder of clinical psychology.

5. Clinical, counselling and the others: telling them apart.

FieldWorks withTypical work
ClinicalPeople with mental disordersDiagnosis, psychological testing, therapy
CounsellingNormal people facing problemsCareer, marriage, study and adjustment counselling
SchoolPupils, teachers, parents in schoolsAssessing learning problems, behaviour plans
ForensicCourts, police, prisons, offendersFitness to stand trial, risk assessment, witness accuracy, offender treatment
Industrial-organisationalEmployees and organisationsSelection, training, leadership, motivation
EvolutionaryBehaviour as adaptationMate choice, aggression, cooperation as products of natural selection
HealthPatients, publicStress, lifestyle, illness behaviour
CommunityNeighbourhoods, groupsPrevention, community mental health programmes
EnvironmentalPeople and surroundingsCrowding, noise, personal space, pollution

A psychiatrist is a medical doctor (MBBS, then an MD, DNB or diploma in psychiatry) who can prescribe drugs; a clinical psychologist is not a medical doctor and uses tests and psychotherapy. Psychiatric social workers handle the family and community side of treatment.

6. Psychology and social problems. The syllabus asks how psychology helps society. For a probation officer these are the core cases.

  • Violence and aggression. Aggression is behaviour meant to harm another. Hostile aggression aims at hurt; instrumental aggression uses harm to get something. Explanations: instinct (Freud, Lorenz), frustration–aggression hypothesis (Dollard and others, 1939), social learning (Bandura's Bobo doll studies: children copy aggressive models), and media and family violence as models. WHO also classes violence by nature: physical, sexual, psychological and deprivation or neglect.
  • Prejudice and discrimination. Prejudice is a negative attitude towards a group; discrimination puts it into action (refusing a job, a house, a seat). Forms: racism (race, colour), casteism, sexism, ageism, religious and regional prejudice. Reducing it: contact between groups on equal terms (Allport's contact hypothesis, 1954), superordinate goals that need both groups (Sherif's Robbers Cave study), education, laws, and re-categorising "them" as part of "us".
  • Poverty. Psychology studies its effects: poor nutrition and health, low self-esteem, learned helplessness, a short time horizon, and lower school achievement. Relative deprivation (feeling worse off than others one compares with) predicts anger and unrest better than absolute poverty. Programmes that add skills, self-efficacy and social support work better than cash alone.
  • Juvenile delinquency. Law-breaking by a person under 18 (in India, a "child in conflict with law": a child alleged or found to have committed an offence who was under 18 on the date of the offence, Juvenile Justice (Care and Protection of Children) Act, 2015, s. 2(13)). Psychological risk factors: broken or abusive families, poor supervision, school failure, delinquent peers, substance use, low self-control. Psychologists assess the child, advise the Juvenile Justice Board (for example in the preliminary assessment of a 16–18-year-old accused of a heinous offence, s. 15 of the 2015 Act), and run counselling, family work and skill training in homes.
  • Other problems in the same list: substance abuse, gender discrimination and violence against women, health and HIV awareness, environmental stress, and disaster trauma.

Common traps

  • ✗ "The word psychology was first used by Goclenius in 1950." ✓ 1590 (APPSC 2023 printed "1950" in the option; read it as the 16th century).
  • ✗ "Scientific psychology began in 1779 or 1889." ✓ 1879, Wundt, Leipzig.
  • ✗ "William James or Watson built the first intelligence test." ✓ Alfred Binet (with Simon, 1905).
  • ✗ "Woodworth defined psychology as the science of the soul." ✓ Woodworth: activities of the individual in relation to the environment.
  • ✗ "Morgan and King studied only human behaviour." ✓ Human and animal behaviour, plus its application.
  • ✗ "School psychologists and clinical psychologists do the same job." ✓ School psychologists work in educational systems; clinical psychologists treat mental disorders.
  • ✗ "Evolutionary psychology studies child development." ✓ It studies the role of evolution in behaviour; development is developmental psychology.
  • ✗ "Violence on oneself is interpersonal violence." ✓ It is self-directed; interpersonal is between individuals; collective is by groups.
  • ✗ "Prejudice and discrimination are the same." ✓ Prejudice = attitude; discrimination = behaviour; stereotype = belief.
  • ✗ "A clinical psychologist prescribes medicines." ✓ Only a psychiatrist (a medical doctor) does.

Quick revision

  • Psychology = science of behaviour and mental processes.
  • Woodworth: activities of the individual in relation to the environment.
  • Morgan & King: human and animal behaviour + application; Baron: behaviour and cognitive processes.
  • Both natural and social science; APPSC key: social science.
  • 1860 Fechner; 1879 Wundt Leipzig; 1890 James; 1896 Witmer clinic; 1905 Binet test; 1913 Watson.
  • India: Calcutta University lab 1915; Girindrasekhar Bose, psychoanalysis 1922.
  • Seven schools: structural, functional, behaviourist, Gestalt, psychoanalytic, humanistic, cognitive.
  • Clinical = disorders; counselling = normal problems; school = in schools; forensic = law; evolutionary = evolution.
  • WHO violence: self-directed, interpersonal, collective.
  • Racism = unfair treatment by race or colour; prejudice (attitude) → discrimination (act).
Go deeper: Deeper (beyond what APPSC Paper I usually asks)

Deeper Advanced

1. Why each school rose and faded. Structuralism fell because introspection could not be checked by others. Functionalism merged into applied and educational psychology. Behaviourism ruled US psychology from about 1920 to 1960 but could not explain language and thinking; Chomsky's 1959 review of Skinner helped start the cognitive revolution. Psychoanalysis survives mainly in therapy. Humanistic psychology was named the third force (after behaviourism and psychoanalysis). Most modern psychologists are eclectic: they combine biological, cognitive, behavioural and socio-cultural explanations.

2. Modern perspectives (often asked in place of "schools"): biological (neuroscience), behavioural, cognitive, psychodynamic, humanistic, evolutionary, socio-cultural. Positive psychology (Martin Seligman, APA president, 1998) studies strengths, well-being and happiness.

3. Psychology and other disciplines. Psychology shares ground with biology and neuroscience (brain and behaviour), sociology and anthropology (groups and culture), philosophy (mind, knowledge), medicine (psychiatry, health), law (criminal responsibility, witnesses), economics (behavioural economics: decisions are not fully rational) and computer science (artificial intelligence, models of the mind).

4. Indian roots and growth. Indian thought (Upanishads, Yoga, Buddhism) has long analysed mind, consciousness and self-control. Modern Indian psychology began at Calcutta (1915), followed by Mysore and other universities; later work moved from copying Western studies to Indian issues such as poverty, deprivation and social change (studies of disadvantaged children by Durganand Sinha and others).

5. Violence as a public-health issue. The WHO report (2002) treats violence like a disease: find its risk factors at the individual, relationship, community and society levels (the ecological model) and prevent it early. This is the logic behind parenting programmes, school anti-bullying work and de-addiction services.

Sources: NCERT Psychology, Class 11, chapter 1 "What is Psychology?" (definitions, branches, psychology in India); NCERT Psychology, Class 12, chapters on attitude and social cognition and on psychology and life (social problems); C.T. Morgan, R.A. King et al., Introduction to Psychology (McGraw-Hill), chapter 1; R.A. Baron, Psychology (Pearson), chapter 1; Telugu Akademi, B.A. Psychology (General Psychology), introduction; WHO, World Report on Violence and Health (2002), typology of violence; APPSC District Probation Officer Gr II, Paper II Psychology, 2023 paper with final key (themes only)

Last checked 2026-10-22.

Practise this topic. Questions on Nature, definitions, history and schools of psychology, with answers explained.

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