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Signal Detection Theory in AP Psychology

Written by the Fiveable Content Team
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team

Definition

A theory predicting how and when we detect the presence of a faint stimulus (signal) amid background noise (other stimuli). It involves decision-making processes as well as sensory processes.

AP course connection

Topic 3.1: 3.1 Principles of Sensation

Unit 3

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