Can 'set up' a fieldexperiment and leave for a year
Access is likely to be more of a problem
Lack of consent before the experiment is conducted
Deception of participants
80% of the participants in the Rosenthal and Jacobson experiment did not benefit from the study
Not possible to control variables as closely
Mayo's research shows the participants wanted to please the researcher
Hawthorne effect
Mayo's research
Workers productivity increased from the norm, despite him making the environment more uncomfortable
Rosenhan's study
In the 'pseudopatient' experiment, researchers presented themselves at 12 mental hospitals, stating they had been hearing voices. Once in hospital the ceased to complain however continued to be labelled as schizophrenic
Higher in validity
Rosehan argues field experiments are more natural and realistic
