When people try to judge whether a stimulus is present or absent, they make correct judgments, misses, and false alarms. The study of their answers is known as

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The study of correct judgments, misses, and false alarms in detecting a stimulus is known as signal-detection theory. This theory focuses on the ability of an individual to distinguish between signal (presence of a stimulus) and noise (absence of a stimulus) and the factors affecting their decision-making process. Gestalt psychology focuses on how people organize and perceive visual information, opponent-process theory explains color perception, and psychophysical function describes the relationship between physical stimuli and their perceived properties.

When People Try to Judge Whether a Stimulus Is Present