Choose a book or major article that employs a case study for testing a theory. (Do not choose the same book or article as used for any previous assignment.) How did the author decide what should be selected for the study? Do you think the criteria were appropriate? Is it a "crucial" case for the theory? Can any generalizations be drawn from the case? How does the author define and limit the unit for study? Might the choice of other units lead to different results? Answer these questions in the form of a brief three or four page paper