In a secondary part of his key research, Rosenhan (1973) informed staff at a teaching hospital that one or more pseudopatients would attempt to gain admission over a three-month period. This resulted in staff suspecting that 41 genuine patients were impostors, despite Rosenhan sending no pseudopatients at all.
Suggest two improvements that could be made to the methodology or ethics of Rosenhan's key research (1973), justifying how each improvement would enhance the study's scientific value or ethical standing.
