MECE + Hypothesis + Issue Tree Field Guide
Recall the core distinctions and moves across MECE, hypotheses, and issue trees.
What does MECE protect against in an issue tree? It protects against material overlap and material gaps: counting the same case twice or leaving an important case nowhere. The practical standard is whether the conclusion would change if overlap or gaps were fixed. Diagnostic tree or solution tree? Diagnostic explains why; solution compares what to do. Do not mix why-branches and how-branches at the same level. TEST What makes a useful hypothesis test? Traceable, Evidence-based, Specific, Time-bounded Objection: We do not have time to build a tree. Response: We do not need a perfect tree. We need a first split…
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