Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-26T20:40:36.703Z Has data issue: false hasContentIssue false

Testing for Necessary and/or Sufficient Causation: Which Cases Are Relevant?

Published online by Cambridge University Press:  04 January 2017

Jason Seawright*
Affiliation:
Department of Political Science, 210 Barrows Hall, University of California, Berkeley, Berkeley, CA 94720-1950. e-mail: [email protected]

Abstract

Previous researchers have argued that necessary and/or sufficient causes should be tested through research designs that consider only cases with limited combinations of scores on the independent and the dependent variables. I explore the utility for causal inference of the design proposed by these authors, as compared to an “All Cases Design.” I find that, if researchers define the population carefully and appropriately, each case in the population contributes to causal inference and is therefore useful. Previous authors reject this claim on the basis of a view that holds constant the marginal distribution of either the dependent or the independent variable across the working and the alternate hypotheses. I argue that this restriction is not generally appropriate, and hence, an analysis that samples from the entire population is logically defensible. I also argue that this design is more statistically efficient. A reanalysis of two well-known studies demonstrates that sampling from all cases in the relevant population produces greater confidence in the hypothesis than sampling only from cases that experience the outcome.

Type
Articles
Copyright
Copyright © Political Methodology Section of the American Political Science Association 2002 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bartels, Larry M. 1996. “Pooling Disparate Observations.” American Journal of Political Science 40:905942.CrossRefGoogle Scholar
Braumoeller, Bear F., and Goertz, Gary. 2000. “The Methodology of Necessary Conditions.” American Journal of Political Science 44:844858.Google Scholar
Collier, David, Brady, Henry E., and Seawright, Jason. 2002. “Drawing Together the Debate.” In Rethinking Social Inquiry: Diverse Tools, Shared Standards, eds. Brady, H. E. and Collier, D. Berkeley: Berkeley Public Policy Press/Lanham, MD: Rowman and Littlefield, Chap. 13. Forthcoming.Google Scholar
Coppedge, Michael. 1994. Strong States and Lame Ducks: Presidential Partyarchy and Factionalism in Venezuela. Stanford, CA: Stanford University Press.CrossRefGoogle Scholar
Dion, Douglas. 1998. “Evidence and Inference in the Comparative Case Study.” Comparative Politics 30(January): 127145.Google Scholar
Goertz, Gary. 2002. “The Substantive Importance of Necessary Condition Hypotheses.” In Necessary Conditions: Theory, Methodology, and Applications, eds. Goertz, G. and Starr, H. Lanham, MD: Rowman and Littlefield. Forthcoming.Google Scholar
Goertz, Gary, and Starr, eds, Harvey. 2002. Necessary Conditions: Theory, Methodology, and Applications. Lanham, MD: Rowman and Littlefield. Forthcoming.Google Scholar
Hempel, C. G. 1945. “Studies in the Logic of Confirmation.” Mind 54:1121.Google Scholar
Jackson, John E. 1992. “Estimation of Models With Variable Coefficients.” Political Analysis 3:2749.Google Scholar
Mahoney, James. 2000. “Strategies of Causal Inference in Small-N Analysis.” Sociological Methods and Research 28(May): 387424.Google Scholar
Migdal, Joel S. 1988. Strong Societies and Weak States: State-Society Relations and State Capabilities in the Third World. Princeton, NJ: Princeton University Press.Google Scholar
Mill, John Stuart. 1974. A System of Logic. Toronto: University of Toronto Press.Google Scholar
Przeworski, Adam, and Limongi, Fernando. 1997. “Modernization: Theories and Facts.” World Politics 49(January): 155183.Google Scholar
Ragin, Charles C. 1987. The Comparative Method: Moving Beyond Qualitative and Quantitative Strategies. Berkeley: University of California Press.Google Scholar
Ragin, Charles C. 1998. “Comparative Methodology, Fuzzy Sets, and the Study of Sufficient Causes.” APSA-CP: Newsletter of the Comparative Politics Section of the APSA 9(1): 1822.Google Scholar
Ragin, Charles C. 2000. Fuzzy-Set Social Science. Chicago: University of Chicago Press.Google Scholar
Skocpol, Theda. 1979. States and Social Revolutions: A Comparative Analysis of France, Russia, and China. Cambridge: Cambridge University Press.Google Scholar
Suppes, Patrick. 1984. Probabilistic Metaphysics. Oxford: Basil Blackwell.Google Scholar
Waldner, David. 1999. State Building and Late Development. Ithaca, NY: Cornell University Press.Google Scholar
Wickham-Crowley, Timothy P. 1992. Guerillas and Revolution in Latin America: A Comparative Study of Insurgents and Regimes Since 1956. Princeton, NJ: Princeton University Press.Google Scholar