In the signal-detection method,what do we call it when a subject detects a stimulus when no stimulus is actually present

A)  hit 
B)  correct rejection 
C)  miss 
D)  false alarm

False Alarm

A situation where a warning or alert is given, but no actual threat or danger exists.

Correct Rejection

In signal detection theory, the decision that a signal is not present when it truly is absent.

Hit

In cognitive psychology, correctly identifying a stimulus from a set of alternatives in memory tasks; in sports, making successful contact with the target.