Final answer:
In group situations, having someone else present helps keep everyone accountable and reduces negative outcomes.
Step-by-step explanation:
In group situations, people may feel a sense of anonymity and a resulting reduction in accountability and sense of self. To prevent this, it is important to have someone else present as it keeps everyone accountable and reduces the chances of inappropriate behavior or negative outcomes. For example, if a group of students is working together on a project, having a teacher or another student present can ensure that everyone contributes and follows the rules.