In 1849, Mr. Phineas Gage survived after having a metal rod driven through his head when an explosive charge accidentally went off. The accident destroyed a large portion of his frontal lobe. Based upon the effects this accident had on Mr. Gage, researchers were able to learn a great deal about the frontal lobe and its effects on behavior. This was an example of the use of a(n) .

Case study

Explanation:

A Case Study is a non Experiemental and Qualitative research method. It is an in-depth and detailed study of ones case that involves a lot of information collection about a person, group, or event. The technique is used where one individual or a small group of people, places, things and others, are studied over a long period of time.

It is conducted in the form of Interviews, Psychological tests, observations and experiments. It can also be from people who were involved such as family/friends and information collected is analyzed to get the a full picture or deeper view.

answer; ethnocentrism;