Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

Evaluating the Quality of Individual Studies

Sample evaluation form which tracks:

reference
exposure measure and range
outcome classification
participant selection and comparability
consideration of likely confounding
completeness of results
adequate sample size
additional comments - limitations in confidence in results

Evaluating the Quality of Individual Studies (pdf) (126.54 KB)

Evaluating the Quality of Individual Studies

Scientific Leadership