will provide guides or indices to relevant facts" (in Ehrmann 1958, 297). Designing a consistent method of measurement, rather than achieving absolute consensus among the experts, is the key to measuring ethnic group influence over governmental foreign policy.
This chapter has introduced many of the issues, both theoretical and practical, to be addressed in this book. To reiterate, the objective is to compare American and Canadian Jewish lobby groups and to use that comparison as the basis upon which to analyze the phenomenon of ethnic political behavior generally.
Subsequent chapters of the book are organized in the following way: Chapter 2 will briefly outline the history, mandate, and organizational structure of the American Israel Public Affairs Committee (AIPAC); chapter 3 will do the same for AIPAC's Canadian counterpart, the Canada-Israel Committee (CIC). Chapters 4 and 5, respectively, analyze the political behavior, institutional dynamic, and relative influence enjoyed by the organized American and Canadian Zionist lobbies from October 1973 until December 1988. The final chapter of the book provides a detailed comparison of AIPAC and the CIC on the basis of the six criteria of analysis outlined earlier in this chapter; it concludes with some general comments concerning ethnic interest groups and ethnicity as the basis for effectively comparing political systems.