People can often decide whether something is a "vehicle" even though they cannot clearly define the category "vehicles". The fact that they do so tends to support the concept of

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Quizplus · Accepted Answer

This question is testing knowledge of the concept of prototypes in cognitive psychology. Prototypes are mental representations of the typical or ideal example of a category, and are used to determine whether something fits within a particular category. The fact that people can identify things as vehicles even though they may not have a clear definition of the category suggests that they are using their prototypical understanding of what a vehicle is to make that determination. Semantics, the availability heuristic, and the word-superiority effect are not directly relevant to this question.

People Can Often Decide Whether Something Is a "Vehicle" Even