What concept is illustrated by individuals feeling anonymous and less accountable in groups?

The concept illustrated by individuals feeling anonymous and less accountable in groups is deindividuation. This phenomenon occurs when people are immersed in a group context, which reduces their self-awareness and makes them less likely to adhere to social norms. In situations where individuals feel part of a larger group, the sense of personal responsibility diminishes, leading to behavior that may not align with their typical values or standards.

Deindividuation can enhance feelings of anonymity, often resulting in actions that an individual might not engage in when alone, such as aggression or impulsiveness. This is particularly evident in large crowds or situations where individuals are masked or uniformed, as the loss of personal identity allows for a greater willingness to act in ways that might otherwise feel uncomfortable or unacceptable. The phenomenon is integral to understanding group dynamics and behavior, particularly in contexts like riots, online interactions, or even during celebrations where norms are relaxed.