When you consider the complexities and possible errors inherent in regression analysis, you may be prompted to rethink some of the data types you originally planned to collect. Perhaps there are variables you had not considered before that might affect your results. You may need to revisit your analysis several times. To prepare: Think about the public policy and administration issue you have been examining throughout the course. Consider the types of questions you might ask in order to collect more data for regression analysis. In 2–3 pages: Provide an explanation of why the regression analysis step is central to the SI process. Discuss the reasons why so much emphasis has been placed on regression analysis, the concepts underlying regression analysis, and how those concepts can help you understand a phenomenon.