An experimenter gives one group of depressed subjects a certain amount of the medication Prozac and another group of depressed subjects a comparatively higher dose. Then she measures the number of violent or suicidal thoughts members of both groups have. In this situation, the independent variable is

A. the measure of medication administered.
B. the number of suicidal thoughts the subjects report.
C. the number of violent thoughts the subjects report.
D. the initial level of depression of the subjects.


Answer: A

Psychology

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