As part of a research study, David Rosenhan and his colleagues (1973) faked schizophrenic symptoms to infiltrate mental hospitals. Once they had been admitted and no longer complained of any fake symptoms, What was the purpose of their study?
1) To test the effectiveness of psychiatric diagnosis
2) To evaluate the quality of mental healthcare
3) To investigate the experiences of patients in mental hospitals
4) To explore the causes of schizophrenia