A psychologist is studying the effect of varying levels of caffeine on anxiety. In this experiment, caffeine level is the
A. correlation coefficient.
B. dependent variable.
C. independent variable.
D. uncontrolled variable.
Answer:C
A psychologist is studying the effect of varying levels of caffeine on anxiety. In this experiment, caffeine level is the
A. correlation coefficient. B. dependent variable. C. independent variable. D. uncontrolled variable.