A classic experiment in operant conditioning conducted by the famous behaviourist.
Carol Dweck showed how changing people's beliefs can affect their levels of achievement.
Claudia Hammond revisits Langer and Rodin's 1976 Arden House study.
BBC Radio 4 Extra
Revisiting Harry Harlow's surrogate mothers experiment, which revolutionised parenting.
The 1920s experiment in a Chicago factory that gave rise to a classic textbook phenomenon.
Claudia Hammond revisits David Rosenhan's influential 1973 study of psychiatric diagnoses.
By insisting on observation in nurseries, Anna Freud promoted understanding of children.
Claudia examines the Hierarchy of Needs, part of Abraham Maslow's theory of motivation.
James Pennebaker proved that simply writing about how you feel can improve your health.
Claudia Hammond examines the legacy the psychologist who launched the cognitive revolution