What must a methodology chapter contain, and what are its common weaknesses?

The doctrinal (the library's-method (the LAW5506's-full-depth-here-the-recall)): the law- itself-studied (the statutes + the cases + the commentary (the analysis-internal-to-the-law (the coherence-and-the-logic (the gap-and-the-reform (the lawyer's-classic-craft))))); The non-doctrinal (the law-in-life's-method (the LAW5805's-full-depth)): the law's-effects-studied (the people-and-the-practice (the empirical (the data-the-evidence (the sociology-of-law (the "law in books vs law in action" — the Roscoe-Pound-lore (the name-level (the classic-dichotomy (the exam's-cite))))))); The mixed (the both-families): the doctrinal-chapter + the empirical-chapter (the law-analyzed-then-the-impact-tested (the strongest-dissertations-often (the method-matched- to-the-question (the not-the-fashion (the fitness-the-criterion)))));