What “impact” means

Research impact is the extent to which work is read, used, built upon, and makes a difference — inside and outside academia. Metrics try to estimate impact using countable signals like citations.

Why people measure it

  • Promotion and tenure decisions;
  • Allocating funding and grants;
  • Demonstrating productivity and value;
  • Comparing journals, departments, or institutions.
Worked example — a metric is a proxy, not the thing itself
A paper with few citations may still have huge real-world impact (e.g. it changed a clinical guideline). A highly-cited paper may be cited because it is wrong. Citations estimate attention — not quality or value. Always ask what a number is really standing in for.

🔗 Learn more (free): Wikipedia — Bibliometrics (overview of measuring research)

Try it
Think of a piece of research that mattered to you. List one way its impact shows up that no citation count would capture.

Self-check

Why is a citation count a proxy for impact rather than a direct measure of it?


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Última alteração: quinta-feira, 4 de junho de 2026 às 12:48