Peter Cathcart Wason

Peter Wason
Born(1924-04-22)22 April 1924
Died17 April 2003(2003-04-17) (aged 78)
Resting placeHighgate Cemetery
NationalityEnglish
CitizenshipBritish
Alma materOxford, University College, London
Known forPsychology of reasoning
RelativesSydney Rigby Wason (uncle)
Scientific career
FieldsPsychology
InstitutionsUniversity of Aberdeen, University College, London
Doctoral students

Peter Cathcart Wason (22 April 1924 – 17 April 2003) was an English cognitive psychologist at University College, London, who pioneered the psychology of reasoning. He sought to explain why people consistently commit logical errors. He designed problems and tests to demonstrate these behaviours, such as the Wason selection task, the THOG problem and the 2-4-6 problem. He also coined the term "confirmation bias"[1] to describe the tendency for people to immediately favor information that validates their preconceptions, hypotheses and personal beliefs regardless of whether they are true or not.

Grave of Peter Cathcart Wason in Highgate Cemetery (east side)
  1. ^ The Telegraph. "Peter Wason". The Telegraph. Retrieved 24 November 2014.