think this study was more on the response of the doctor in the presence of another doctor who can be senior or junior colleague i think this can have some effects on the doctors interaction with the patient for example if the third party are senior colleagues and the doctor in question is new in the practice he will be under a test rather than attending to the patient and on the other hand the interaction will be different if he has student doctor around he will be more in control of the situation and on the patients side like sandip has said the anxiety level may either be increased or decreased depending on the patient in question.
I think a discourse analysis study can be done using the same set of doctors and patient under this different conditions to see the effect on both the patient and the doctor
