A psychology professor asks a group of students to interview someone and determine whether or not the interviewee is an introvert. The professor asks another group of students to interview someone and determine whether or not they are extraverted. According to confirmation bias, the students in charge of determining introversion are likely to ask questions focused on , and students determining extraversion are likely to ask questions focused on .

social withdrawal; sociability                                    

Explanation:

Social withdrawal: In psychology, the term "social withdrawal" is referred to as a condition in which an individual tends to avoid the other person and various activities that he or she used to enjoy. It can cause depression, loneliness, etc. An individual who is dealing with social withdrawal generally feels isolated and spends time alone with oneself and referred to as an introvert.

Sociability: In psychology, the term "sociability" is considered as one of the personality traits that describes the capability of an individual to be fond of another person's company and seeks for opportunity related to social contact with other individuals and are referred to as extrovert.

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.