Pluralistic ignorance
Pluralistic ignorance can be contrasted with the false consensus effect. In pluralistic ignorance, people privately disdain but publicly support a norm (or a belief), while the false consensus effect causes people to wrongly assume that most people think like they do, while in reality most people do not think like they do (and express the disagreement openly). For instance, pluralistic ignorance may lead a student to drink alcohol excessively because she believes that everyone else does that, while in reality everyone else also wishes they could avoid binge drinking, but no one expresses that due to the fear of being ostracized. A false consensus for the same situation would mean that the student believes that most other people do not enjoy excessive drinking, while in fact most other people do enjoy that and openly express their opinion about it.
Pluralism (political theory)
Classical pluralism is the view that politics and decision making are located mostly in the framework of government, but that many non-governmental groups use their resources to exert influence. The central question for classical pluralism is how power and influence are distributed in a political process. Groups of individuals try to maximize their interests. Lines of conflict are multiple and shifting as power is a continuous bargaining process between competing groups. There may be inequalities but they tend to be distributed and evened out by the various forms and distributions of resources throughout a population. Any change under this view will be slow and incremental, as groups have different interests and may act as "veto groups" to destroy legislation. The existence of diverse and competing interests is the basis for a democratic equilibrium, and is crucial for the obtaining of goals by individuals. A polyarchy—a situation of open competition for electoral support within a significant part of the adult population—ensures competition of group interests and relative equality. Pluralists stress civil rights, such as freedom of expression and organization, and an electoral system with at least two parties. On the other hand, since the participants in this process constitute only a tiny fraction of the populace, the public acts mainly as bystanders. This is not necessarily undesirable for two reasons: (1) it may be representative of a population content with the political happenings, or (2) political issues require continuous and expert attention, which the average citizen may not have.