Mundane Realism compares and explores the level of similarity between objects and situations observed in the experiment and those that occur in reality. It follows that Mundane Realism is a type of external reality where conclusions can be combined and passed from experimentation to real situations.


In 1968, Elliot Aronson and J. Merrill Carlsmith used and first introduced Mundane Realism as a possible threat to external certainty. This means that in real life, it is more difficult to use generalized conclusions obtained during experimental conditions.

Mundane Realism and Experimental Realism can be contrasted, where experimental realism is responsible for whether the experiment psychologically affects the participants and whether the study feels real in relation to the subject.

These aspects are very important for the conclusion of results and findings that were obtained in the laboratory and in real life, but they are not similar and independent. This means that any experiment can have high or low importance in both experimental and mundane realism.

A good example of the interaction between Mundane Realism and Experimental Realism is the Robber’s Cave experiment, where the Muzafer Sheriffs Classic are divided into two groups that rival and fight each other in summer camp. The group of boys was arbitrarily divided into two teams by the Sheriff, where one team competed with the other in camp activities.

This situation is very similar to the real experience of the summer camp, so the study has a high level of Mundane realism. This experience also has a high level of experimental realism, as it has a high level of psychological impact of the processes used in the study.

At the same time, there is Solomon Asch’s classic conformism experience, which shows a low level of Mundane realism and a high level of experimental realism. The experimental group was asked to express relatively realistic conclusions about the real length of three lines, but they first heard the conclusions of some of their “fellow group members”.

The same “classmates” were supposed to be the front men of the one who set this experience and were given the task of giving the wrong answers unanimously. At the same time, the real members of the experiment were stressed and gave a real reaction to the pressure from the “classmates”, which showed the experimental realism of the experience. However, the level of Mundane realism was low because few people in real life would give the wrong answer to a simple, adequate, visual problem.

Mundane Realism is a measure or level of external validity where research findings and results are combined into a real world. The questions he asks are: Are the objects and situations so similar to real life that are applied in a particular experiment?

For example, in a memory experiment, participants will be asked to memorize a sheet of three-letter, meaningless words. The study on mundane realism asks questions such as: How real are the memory tests and how similar are they to real life? Is it possible to use the indicators of this experience and apply them to real-life memory problems?

Carlsmith and Aronson recognized mundane realism and experimental realism. Experimental realism refers to a situation where participants see the situation as planned and conceived. Mundane realism refers to situations that may occur in people’s lives outside the laboratory.

Members and participants of the experiment should choose the situation that attracts them and seems convincing to them. The observations through which this is identified may bring the most important knowledge, even though it may have Mundane realism.

At first, it may seem that practical experimentation is constantly high in mundane realism simply because it is carried out in real life, outside the laboratory. However, due to the supposed unreality of the experiences and conditions used in practical research, there is also a lack of Mundane realism in the same way as there is a lack of experience under other conditions.