Researchers embarked on a novel study intent on measuring what a Princeton philosophy professor contends is one of the most salient features of our culture — the ability to play the expert without being one.

Or, as the social scientists put it, to BS.

Research by John Jerram and Nikki Shure of the University College of London, and Phil Parker of Australian Catholic University attempted to measure the pervasiveness of this trait in society and identify its most ardent practitioners.

Study participants were asked to assess their knowledge of 16 math topics on a five-point scale ranging from “never heard of it” to “know it well, understand the concept.” Crucially, three of those topics were complete fabrications: “proper numbers,” “subjunctive scaling” and “declarative fractions.” Those who said they were knowledgeable about the fictitious topics were categorized as BSers.