Answer:
Signal Detection Theory.
Explanation:
Signal Detection theory is the ability that helps in differentiating between the patterns that give information and patterns that distract us. The theory is used in many areas such as telecommunications, psychology, etc.
In the given case, Catherine was able to recognize the voice of her son because of the signal detection theory. She was able to eliminate the patterns of voice coming from the cheering of crowds and able to detect the voice of her son.
So, the correct answer is the signal detection theory.
Answer: Artifacts
Explanation:
Artifacts are the components that are disrupt the external validity or internal validity of result in any research.Artifacts tend to modify or change the authenticity of participant and equipment involved in research field with their presence.
Impact of artifacts can also be influential to understand the process through observing evidences. They impact evidences, documents,tools, equipment, etc.
The answer is false, i took the test just now, it's false, trust me :D
