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The extent to which stimuli can be distinguished from one another or discriminated. In signal detection theory, it is more specifically an index of the extent to which a signal can be detected or distinguished from noise, and it is also called d prime or d'. discriminable adj. [From Latin discriminare to divide, from discrimen a division, from discernere to divide, from dis apart + cernere to separate + -abilitas capacity, from habilis able]

Subjects: Psychology.

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