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Case selection, elite interview sampling, access negotiation and cross-national panel coverage for a UK political science or IR doctorate — how King, Keohane and Verba’s design logic actually applies.

ANOVA, Design of Experiments, Weibull analysis and spectral methods compared for a UK civil or mechanical engineering doctorate — which test fits which data structure, with a worked concrete-strength example.

PHQ-9, GAD-7, DASS-21 and WEMWBS compared for a UK psychology doctorate — what each measures, its developers and year, its cost and licensing, and which fits which research question.

Electronic lab notebooks, statistics and design software for a UK wet-lab chemistry or biology doctorate — LabArchives, Benchling, GraphPad Prism and SnapGene compared, with UK institutional licensing checked.

Most UK economics PhDs are three-essay theses, and each essay carries its own literature review organised around a model and an empirical literature, classified by JEL code. Ten steps to build it the way examiners expect.

A practice-based or by-design PhD in architecture pairs a design portfolio with a shorter written thesis, typically around 50,000 words at the UK universities that name this route explicitly. Nine steps from application to viva.

The University of Manchester’s Presentation of Theses Policy (March 2026) caps a PhD at 80,000 words of main text, allows journal-format submission, and requires a fixed set of preliminary pages including a Generative AI Disclosure.

University ethics committee approval is mandatory for every UK sociology or social work doctorate; NHS Health Research Authority approval is an additional, separate requirement only when the research recruits through NHS or regulated social care services.