Solve the Problem: Eight Degrees of Analysis
Problem structuring results in a list of elementary issues to crack or elementary hypotheses to test. You will address them one by one through various types of analyses. Start with an analysis plan, in which you identify the analyses and sources you need to address each elementary item. You must give priority to the analyses that can radically change the overall solution. Contrary to popular belief, not all analyses are quantitative, or even entirely fact based: many require assumptions and judgments. When you perform analyses, beware the most common mistakes: (1) biased data selection; (2) assumptions that are unrealistic, inconsistent, untested, or—worst of all—unstated; (3) numerical errors; and (4) data interpretation errors, especially with correlations.