Rosenhan experiment [SEP] named after
Rosenhan experiment
The Rosenhan experiment or Thud experiment was an experiment conducted to determine the validity of psychiatric diagnosis. The experimenters feigned hallucinations to enter psychiatric hospitals, and acted normally afterwards. They were diagnosed with psychiatric disorders and were given antipsychotic drugs. The study was conducted by psychologist David Rosenhan, a Stanford University professor, and published by the journal "Science" in 1973 under the title "On being sane in insane places". It is considered an important and influential criticism of psychiatric diagnosis. 
Rosenhan's study was
describes what is now called the Rosenhan experiment. The experiment arranged for eight individuals with no history of psychopathology to attempt admission into twelve psychiatric hospitals. All individuals were admitted with a diagnosis of schizophrenia or bipolar disorder. Psychiatrists then attempted to treat the individuals using psychiatric medication. All eight were discharged within 7 to 52 days, but only when they had stated that they accepted their diagnosis. In a later part of the study, a research and teaching hospital challenged Rosenhan to run a similar experiment involving its own diagnosis and admission