Which factor is likely to decrease conformity in a group?

The factor that is likely to decrease conformity in a group is a prior commitment to a different view. When an individual has made a prior commitment, they are more likely to maintain their stance even in the face of group pressure. This commitment can be rooted in personal beliefs, values, or decisions that they have openly expressed before the group discussion. Such a commitment acts as a psychological anchor, making it difficult for the person to sway toward the majority's opinion, as they may feel a sense of obligation to uphold their original viewpoint.

Additionally, prior commitments can enhance one's confidence in their beliefs, leading to a reduced likelihood of yielding to peer pressure or majority influence. This contrast highlights the dynamic nature of conformity, showing that individuals may resist conformity efforts when they feel strongly about their choices or beliefs, especially when these have been publicly stated or affirmed in some way.