The author expressed the right of theorists to criticize those who test their theories in unreasonable manners. However, when theorists do not provide clear instructions for appropriate tests, the range of reasonableness is extended. Cantor and Land (1985) were said to have provided researchers with a reasonable description of how to test their theory. The author determined that the C-L theory should be tested with the first differenced crime rate as the dependent variable based on their discussion of fluctuation in crime rates. In referencing David Greenberg’s (1985) theory, the author was unsure on how researchers should test his theory. It was suggested that he outline the conditions necessary for an adequate test, such as the time period, level of analysis, and measures of crime to be used. An examination of the ongoing debate between the C-L and Greenberg models on the relationship between unemployment and the rate of crime created an analysis of time series modeling and issues regarding theory and operationalization, specification, identification with levels, lags, and first differences, differencing and interpretation of model parameters, and additional data and tests. The primary issue seen between C-L and Greenberg was the specification of the model, not the fit of the model. References