What should you check when a claim says results improved dramatically?
Identify the metric, comparison, denominator and time window. Without them, a number is a question to investigate rather than a prediction for your own situation.
Reconstruct the calculation
An increase from one to two and from one hundred to two hundred share a percentage but differ in scale. Check comparable periods, samples and definitions. Do not mix visits, users and completed actions.
Return to the original account
Consult the report or author explanation rather than a screenshot headline. Record missing fields without supplying an invented denominator. Correct arithmetic may still describe a situation unlike yours.
A worksheet you can use
Metric: __. Count and denominator: __. Comparison: __. Period: __. Source: __. Missing information: __.
Do vague words need checking too?
Yes. Most people and substantial improvement also imply magnitude and invite questions about evidence.
Evidence and scope
This is a basic reading check, not statistical, medical or investment analysis.
Project Zero discusses evidence and reasoning. WKND prompts are original, not endorsed. Harvard Project Zero — Claim, Support, Question
Sources and further reading
This collection in Chinese and English · Life possibilities library