Short answers, pulled from the story.
Pluralistic ignorance describes a situation where private beliefs diverge sharply from perceived public norms. Floyd Allport first discussed literal attitude behavior inconsistency in 1924 while studying Syracuse University students.
Floyd Allport co-wrote Students Attitudes: A Report of the Syracuse University Research Study with Daniel Katz to introduce the term pluralistic ignorance for the first time. This 1931 publication marked the initial formal definition of the concept within social psychology research.
Prentice and Miller examined individuals' beliefs about alcohol use and their estimates of peers attitudes during a semester study at Syracuse University. Men showed private attitudes shifting toward perceived norms consistent with cognitive dissonance while women showed no comparable shift despite actual comfort levels being similar.
Tulip mania of 1634 serves as an example where investors pursued unique collections of spring-flowering bulbs causing prices to rise rapidly due to collective illusion. This historical event demonstrates how false perceptions of consensus can drive economic behaviors contrary to individual rationality.
A 2020 Nature Communications survey of 6,119 representatively sampled Americans found 66-80% supported major climate-mitigation policies yet estimated only 37-43% support existed. Respondents in every state and demographic group underestimated support by at least 20 percentage points.