Series
Evidence Notes
Short notes on evidence: what a source can prove, how to size a sample, how to keep a trail from claim to source.
05guides, in reading order
The series, guide by guide
- 01 What a supplier evidence dossier can, and cannot, prove
- 02 Sample size, representativeness and the assumptions buyers should check
- 03 What makes a programme evidence-ready?
- 04 Repurpose an institutional report without losing its evidence trail
- 05 Choose a research method by question, evidence and constraints
- Related practice
- Research, evidence & evaluation

Issues in this series.
GuideWhat a supplier evidence dossier can, and cannot, proveA supplier evidence dossier can prove what documents say and what was seen. It cannot prove what nobody checked. Here is how to read one without being misled.
GuideSample size, representativeness and the assumptions buyers should checkA large sample is not the same as a representative one. Before you trust a survey’s margin of error, check the assumptions behind it.
GuideWhat makes a programme evidence-ready?An evidence-ready programme can show what it did, what changed and how it knows, at the moment a funder or evaluator asks. Many are not, and the gaps are predictable.
GuideRepurpose an institutional report without losing its evidence trailRepurposing a report into posts, briefs and graphics multiplies its reach and its risk of error. Keep a source trail and every asset stays true to the original.
GuideChoose a research method by question, evidence and constraintsMethods follow questions. Decide what your question asks, what data you can actually reach and whether you can influence who receives what, and the choice narrows quickly.
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