Which theory emphasizes that personal expectations and motivations influence the level of absolute thresholds?
a. signal detection theory
b. frequency theory
c. opponent-process theory
d. place theory
e. bottom-up theory

Option (A)

Explanation:

Signal detection theory which is also referred to as the Detection theory is known as a way to evaluate the capability to make a distinction in between the information and data bearing arrangements and also haphazard patterns that tends to distract from data and information. In discipline such as  electronics, the disengagement  of patterns from the covering background is known as the signal recovery.

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