The subject must determine whether sentence is true or not (i.e. "Cadillac is a car brand"), and the reaction time to answering is measured.

University of Michigan - Ann Arbor

Membership to a category is based on how close something is to a prototype (typical/average member) for that category. Prototypes have high family resemblance.

Prototype Approach to Categorization

Goldstein, E. B. (2014). Cognitive psychology: Connecting mind, research and everyday experience. Nelson Education.


Cognitive psychology: Connecting mind, research and everyday experience

Sentence verification technique

The reaction time for verifying sentences that involve prototypical members of a category is faster than less prototypical counterparts from the same category. This is attributed to the first member being more typical than the latter (i.e an apple is identified as a fruit faster than a pomegranate).

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