Group Behavior and Processes The behavior of persons in groups varies according to the environment, psychological setting and the original behavior of the individuals. In all environments, the mindset of the individual plays a huge part on their behavior, even in isolation. Even in this case, when an individual is placed in a group setting, their behavior is modified by their original mindset. The groups are formed by the initial establishment of the psychological bond of the individuals, where their cohesion will cause attraction. After identifying each other, the individuals find their niches in the group- with their tasks, attitude and behavioral norms.