Tell us what we got wrong.

Research moves, and a database of 104 principles will contain mistakes however carefully it was checked. If you’ve found one, or know of a study that should change a rating, this is the place to say so.

What happens next

Every correction is read by a person.

  1. 01We read itYour message comes straight to us by email.
  2. 02We check the sourceWe read the research you point to and look at how it fits with what the entry already cites.
  3. 03We update the entryIf it changes the rating or the wording, we change it and update the date the entry was last reviewed.
What helps most
  • A link to the study or source you are relying on.
  • The principle it affects, and what you think should change.
  • Replications and meta-analyses carry more weight than a single study.

Not a correction? For anything else, see About.

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