In signal-detection processing, what does DCR stand for?

• A. Detection, Confirmation, Recognition
• B. Detection, Comparison, Recognition
• C. Determination, Comparison, Response
• D. Detecting, Cognitive, Recall

Answer: (B)

In signal-detection processing, DCR stands for Detection, Comparison, Recognition. The idea is that processing unfolds in three cognitive steps. First, you detect whether a stimulus is present—that initial sensory awareness even if the signal is weak. Next, you compare the detected input against a decision criterion or a stored representation to decide if it matches the target signal rather than noise. Finally, you recognize or identify what the signal is, labeling it as the specific event you were looking for. For example, in a quiet room you might hear a faint tone: you detect that something occurred, compare the tone to your criterion to determine if it’s the signal, and then recognize it as the target tone. The other options don’t fit because they replace one of these core stages with a less fitting term (for instance, a response is an action after the decision, while confirmation or recall aren’t the standard cognitive steps in this framework).