Separate a research result from a press headline by checking the study design, sample size, limits and independent replication.
Read beyond the headline
A headline may simplify a careful result or overstate an early finding. Identify what the researchers actually measured, in which population or system, and whether the result was a direct observation or a proposed explanation.
Check the study type
A laboratory experiment, observational study, model, preprint and randomized trial answer different questions. A correlation does not establish causation, and a promising result in cells or animals does not automatically apply to humans.
Look for sample size and uncertainty
Small or selective samples can produce unstable findings. Check the effect size, confidence intervals or other uncertainty measures where provided, and look for the limitations the authors acknowledge.
Check funding and independent response
Funding does not automatically invalidate a study, but readers should understand potential conflicts. Look for expert commentary and independent replication rather than relying only on a university press release or commercial announcement.
Use careful language
Describe what the evidence suggests, not what it proves beyond its limits. Science progresses by testing, correcting and refining claims; a single study is often one step in that process.
Editorial note: This guide is general information, not professional financial, legal, medical or investment advice. Check authoritative and up-to-date sources before acting on important claims.