Breaking down the question

The question asks for a comparison of approaches — how sociology and psychology each explain human action, and where they part company. It is a discipline-defining question: answering it well means articulating what is distinctively sociological. The two are neighbours studying the same creature, the acting human being, but they cut into that reality at different levels.

Psychology explains action chiefly by reference to what is inside the individual — instincts, drives, cognition, personality, learning, the unconscious. Sociology explains action by reference to what is outside and between individuals — norms, roles, institutions, group membership, culture and structure. The unit of the first is the person; the unit of the second is the relationship and the collective.

Key elements to unpack:

  • The differing unit of analysis: individual mind versus social relationship.
  • Durkheim's insistence on explaining social facts by other social facts.
  • Why the two are complementary rather than rivals.

How to approach it

Anchor the contrast in Durkheim, whose rules of sociological method explicitly rejected psychological reductionism: a social fact must be explained by another social fact, never by individual psychology. Use his study of suicide as the classic illustration — suicide rates are explained by social integration and regulation, not personal despair alone.

Then set out the differences systematically: unit of analysis, cause invoked, method, and level of explanation. Bring in C. Wright Mills's sociological imagination — the capacity to see private troubles as public issues — as the sharpest statement of the sociological angle. Situate this in the broader story of modernity and the emergence of sociology. Close by stressing complementarity: the two illuminate different facets of the same conduct.

Model answer

Sociology and psychology both study human action, but they explain it at different levels. The difference lies less in the subject — both examine why people behave as they do — than in the cause each treats as primary and the unit each takes as fundamental.

Psychology locates the springs of action within the individual. Its explanations invoke instincts and drives, perception and cognition, personality traits, motivation, learning and the unconscious. The unit of analysis is the individual mind; even social psychology, which studies how others affect the person, keeps the individual as its centre of gravity. When a psychologist asks why a person steals, the answer runs through impulse, conditioning or intrapsychic conflict.

Sociology, by contrast, locates the springs of action outside and between individuals — in the norms, values, roles, institutions and group memberships that pattern conduct. Its unit of analysis is the social relationship and the collectivity. When a sociologist asks why theft occurs, the answer runs through the class structure, anomie, subcultures or blocked opportunity. The person is seen not as a self-contained psyche but as an occupant of social positions whose behaviour is shaped by the web of relations around him.

Durkheim gave this the sharpest formulation. In The Rules of Sociological Method he insisted that social facts — ways of acting and thinking that are external to the individual and exert constraint — must be explained by other social facts, never reduced to individual psychology. His study of suicide is the classic demonstration. However intimate and personal an act suicide appears, its rate varies systematically across religions, marital statuses and historical moments. Protestants show higher rates than Catholics not because of individual temperament but because of differing degrees of social integration and regulation. The cause of a social fact is thus social, not psychological. This is the decisive methodological wedge between the disciplines.

C. Wright Mills captured the sociological angle in the idea of the sociological imagination — the ability to grasp the connection between private troubles and public issues. One person unemployed may be a personal misfortune; mass unemployment is a structural fact of the economy. Psychology tends to read distress as a trouble internal to the person; sociology reads its patterning as an issue lodged in social arrangements.

The methods follow from this. Psychology leans on the experiment, the clinical case and psychometric testing of individuals; sociology leans on the survey, comparative statistics, ethnography and the analysis of institutions and rates.

Yet the two are complementary, not contradictory. A full understanding of, say, deviance needs both the psychologist's account of individual motivation and the sociologist's account of the social conditions that make certain motives common. Weber's verstehen even builds a bridge, taking the actor's subjective meaning seriously while insisting it be explained through its social context. The difference, ultimately, is one of level: psychology explains the individual case; sociology explains the social pattern into which individual cases fall.

Examiner's perspective

The core discriminator examiners seek is the unit and level of analysis — the individual mind versus the social relationship. A script that states this clearly and then illustrates it with Durkheim's rule that social facts explain social facts is already in strong territory.

The suicide example is expected and powerful; using it to show that a seemingly personal act has a social rate demonstrates genuine understanding rather than rote contrast. Mills's private-troubles-into-public-issues sharpens the point.

Top answers avoid caricaturing either discipline and end on complementarity, noting that the two explain different facets of the same conduct. Weaker answers list adjectives without ever naming the level-of-explanation distinction that actually separates the two.