Question

Professor Chen is studying the effect of caffeine and age on response time to a tone. Twenty to forty-year old participants are given 1 mg or 5 mg of caffeine and are then presented with loud or quiet tones and are asked to response to the tone as quickly and accurately as possible. In this example the dependent variable is_________

Answer 1

The dependent variable is the response time to a tone

Step-by-step explanation:

A dependent variable is one that is in function or depends of another (independent variable), in this case the researcher is trying to see if the dependent variable (response time to a tone) depends on the independent variables (effect of cafeine and age).