Evidence levels

Impact claims are easy to make and hard to check. Every outcome on this site carries an evidence level, so you can see at a glance whether it was independently verified, delivered, self-reported or only pledged.

• Independently verified means a third party — an evaluator, auditor or recipient — confirmed the figure.
• Self-reported figures come from the person or their organisation and are labelled that way.
• Pledges are shown next to what was later delivered, where that is known.

Sources we prefer

1. Audited accounts and annual reports
2. Grant and contract records
3. Independent evaluations and audits
4. Government and multilateral programme data

Editorial code

• Coverage is chosen by published criteria, not by any client or dispute.
• Titles are neutral; difficult questions are answered directly.
• Every sensitive page shows its status, source date and review date.
• No one can pay to be added, removed or to change a record.