Experimental validity is: the validity of the experiment I the context in which it was carried out. If a study lacks experimental validity, the participants do not believe in the set-up. Ecological Validity is whether or not the research is valid outside of the experimental situations- real life. Mundane realism is: the use of an artificial situation that resembles a natural situation e.g. a lab experiment set up as a classroom.

Milgram's study of obedience is a classic example of a study that lacked in experimental validity and also in mundane realism. Milgram's study consisted of a confederate having to answer questions, which if they got wrong they would fake being given an electric shock by the machine they were attached to. The participant's role was to give...