An independent variable is one that:
A)Is manipulated
B)Is measured
C)Is kept constant
D)Has one level

Question

Quizplus · Accepted Answer

An independent variable is manipulated by the experimenter in order to observe its effects on the dependent variable. This makes it different from a dependent variable (which is measured) and a control variable (which is kept constant). A variable can have multiple levels, so D is not a distinguishing characteristic of an independent variable.

An Independent Variable Is One That