there are two people in the lab, the experimenter and the observer.  the experimenter is doing an experiment while the observer is supervising the experiment.  the experimenter seems to be concentrating on her experiment.  the observer seems to have a concern look on her face.  the experimenter thinks that the observer see her is inferior, therefore she must prove the observer wrong by doing the experiment correctly.  the observer cares less of what the experimenter thinks of her, and just want to get valid data from the experiment, however, she thinks that she can do a better job than the experimenter
