Discuss the main limitations of the comparative method to the study of Political Science. (2022, 10 Marks)
The comparative method is political science’s substitute for the laboratory: unable to experiment, the discipline reads variation across countries as if history had run the experiment for it. Arend Lijphart’s “Comparative Politics and the Comparative Method” (1971) placed it between the statistical and case-study methods and named its central weakness. Its limitations are methodological, conceptual and contextual.
Methodological limits
- Many variables, small N: in Lijphart’s formulation, there are too many variables and too few cases, so several explanations fit the same evidence. Outcomes rarely trace to one factor; history, economy, colonial legacy and leadership interact.
- Galton’s problem (Francis Galton’s 1889 objection to Edward B. Tylor’s cross-cultural tables): cases are not independent. Institutions spread by imitation and colonial imposition, so parliamentary systems across the Commonwealth may reflect one Westminster template rather than many independent confirmations, which shrinks the effective number of cases further.
- Causation and selection bias: correlation is easier to show than causation (does wealth produce democracy, or democracy wealth?), and studying only cases where an outcome occurred inflates findings.
Conceptual limits
- Conceptual stretching: Giovanni Sartori (“Concept Misformation in Comparative Politics”, 1970) warned that concepts thinned to travel widely lose their meaning. Scholars define democracy, party or civil society differently, producing dozens of adjectival hybrids.
- Ethnocentrism: categories built from Western experience record difference as deficiency. Caste fits neither class nor ethnicity, and Partha Chatterjee (The Politics of the Governed, 2004) coined political society because imported “civil society” missed how most Indians actually deal with the state.
- Interdisciplinary sprawl: borrowing from sociology, economics and psychology has widened the field until its boundaries blur.
Contextual limits
- Agency and non-rational behaviour: leaders and citizens do not act by uniform rules; charisma, emotion and identity resist generalisation. Jawaharlal Nehru’s imprint on Indian institutions cannot be reduced to a variable.
- Data and objectivity: closed regimes such as North Korea release little; poverty or unemployment is defined differently across states; observers read other societies through their own lens. The dispute is live: the V-Dem Democracy Report 2026 calls India an electoral autocracy, while the EIU Democracy Index 2025 keeps it among flawed democracies: two instruments, two definitions of democracy, two verdicts on one country.
- Time: findings decay. Seymour Martin Lipset and Stein Rokkan’s “freezing” of European party systems (1967) described alignments that began to thaw within a decade.
Conclusion
These limits make a general theory of politics arduous, not comparison impossible. Lijphart’s own remedies (more cases, fewer variables, comparable cases), together with sub-national designs (Kerala against Bihar) and process tracing, answer several of them, provided the limits are stated alongside every finding.