Answer:
The physical stimulus is the only part of the test that is measureable, and therefore, knowable. The stimulus is our anchor for our estimate of the listener's perception.
Epithelial, Connective, Muscular, and Nervous
The answer is most likely B, "Alcohol consumption tends to cause more [Aggressive] behavior."
Temperature is a quantitative measurement because it can be "measured". Quantitative data is where you record data that is measurable. Qualitative data is research collected from observations.