method- field and pps obs
sample- nurses and staff of 12 different psych hospitals. 8 psudopatients
procedure- patients called up complaining hearing voices saying "empty", "hallow" and "thud". once admitted patients said they no longer had any symptoms. patients where only discharged when nurses where convinced they where sane.
results- 11 patients diagnosed with schizophrenia and one with manic-depression. shortest stay - 7 days, longest- 52, avg - 19.
patients where dehumanised and made to feel powerless