Rosenhan Conducted a Study in Which He and Several Colleagues

Rosenhan conducted a study in which he and several colleagues got themselves admitted to mental institutions and once they were in the hospitals, they acted normally. The results from this study revealed that

A) they were quickly identified as mentally healthy individuals and asked to leave
B) diagnostic labels appeared to greatly influence how their normal behaviour was interpreted
C) just being in this type of environment served to create some of the initial symptoms of psychological disorders
D) this methodology was effective for allowing them to study the abnormal behaviours of other people in the institution