Marilyn, Bob, and Carl all believe a certain defendant is probably guilty and should be sentenced. Individually their recommendations for a sentence are 3,5, and 7 years.
When they meet as a group however, they recommend 10 years. This change and collective shift is called:
a. groupthink.
b. group polarization.
c. the Abilene paradox.
d. an escalation of commitment.

Group polarization is a concept in social psychology where the decision made by a group of people is more extreme to the decision made by the individual members of the group.

The members of the group recommended 3,5,7 years as prison sentence individually but 10 years together. 10 years is more extreme when compared to the sentences recommended individually.

I hope my answer helps you.