Features
- Cover Type: Paperback with 136 pages
- Published by: Cornell University Press September 1997
- Written in: English
- ISBN 10 Number: 080148457X
- ISBN 13 Number: 978-0801484575
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Book Dimensions:
8.1 x 5.4 x 0.5 inches
- Weighs: 6.4 ounces
Reader Reviews
In this book Mr. Van Evera introduces the reader to the gospel of arrow diagraming, in which all political science theories must be drawn as letters, representing variables, with arrows (representing causality) connecting them. Thus, to quote Van Evera, "a theory that cannot be arrow-diagrammed is not a theory and needs reframing to become a theory." Thus, by his measure, much of the poli sci "theories" are not theories at all. So what are GOOD theories, for van Evera, besides those that are easily arrow-diagramed? Theories are general statements that describe and explain the causes or effects of classes of phenomena. They are composed of causal laws or hypotheses, explanations, and antecedent conditions. Explanations are also composed of causal laws or hypotheses, which are in turn composed of dependent and independent variables. A good theory has 7 characteristics: it has large explanatory power (importance, explanatory range, applicability), and is parsimonious, satisfying, clearly framed, falsifiable, explains important phenomena, and has "prescriptive richness." In short, the book might teach newbies a thing or two about methodological rigor and research design, but is certainly no model of sophistication. In fact, the book is a perfect example of why American political "science" is sometimes mocked by the rest of the academic world.
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