Corrections

If we get something wrong, we fix it, and we say so.

How to report an error

If you think a page misstates a study, uses the wrong number, or gives the wrong grade, tell us which page, what you think is wrong, and the source that shows it. A dedicated corrections address is being set up and will be published here.

What we do

• Minor fixes (typos, broken links) are corrected without a notice.
• Factual corrections are made on the page, and the page’s review date is updated.
• Any change to a verdict or evidence grade is recorded in the log below with the date and the reason.

Corrections log

No corrections to verdicts or grades have been made since publication.