• In I. J. Good's review of The Conscious Universe by Dean Radin (Nature 389, 806; 1997), an editorial addition led to an innaccurate statement being attributed to the author rather than to the sceptical psychologist Mark Hansel. The fourth sentence in the penultimate paragraph should have read: “Radin quotes Hansel as saying that three P values, each of 0.01, amount to one of 10−6, and that he (Hansel) would find that convincing.”