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.
Sociology of scientific ignorance
The sociology of scientific ignorance (SSI) is the study of ignorance in and of science. The most common way is to see ignorance as something relevant, rather than simply lack of knowledge. There are two distinct areas in which SSI is being studied: some focus on ignorance in scientific research, whereas other focus on public ignorance of science. Sociology of scientific ignorance is a complementary field to the sociology of scientific knowledge (SSK).