Question

The variable that causes a change in another?

Answer 1

Dependent Variable

Explanation: The dependent variable is the variable to be explained (the ‘effect”) and the independent variable is the variable expected to account for (the “cause” of) the dependent variable. Like Cause and Effect.

Answer 2

The idea is that one variable is the effect of another variable or, to say it another way, that one variable precedes and/or causes another. The dependent variable is the variable to be explained (the 'effect”). The independent variable is the variable expected to account for (the “cause” of) the dependent variable.