Before revision: In a study reported in 1997, William M. Goldstein and Robin M. Hogarth gave an experimental group was given a questionnaire containing general-knowledge questions such as "Who was born first, Aristotle or Buddha?"
After revision: In a study reported in 1997, William M. Goldstein and Robin M. Hogarth gave an experimental group a questionnaire containing general-knowledge questions such as "Who was born first, Aristotle or Buddha?"