Forschungsdesign in der Politikwissenschaft - Kausale Perspektiven versus kontrastive Theorietests

Abstract

The political science literature distinguishes two basic types of research designs: x- and y-centered. The article argues for the distinction of a third basic type: the "contrastive" design. The three designs differ in the number of relevant theories and in whether they see theories as competing or complementary. The typological differentiation of the contrastive research design helps to clarify the pros and cons of x- und y-centered designs. The article uses exemplary studies (experimental and observational, quantitative and qualitative) to illustrate the characteristics of the three designs as well as the possibilities of combining them. The contrastive design also constitutes a common element of the quantitative and qualitative research "cultures".