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A variable that is responsible for bringing change is called ............. .

  • A.Controlled variable
  • B.Dependent variable
  • C.Independent variable
  • D.Constant variable

Answer: C

The variable that brings about change is the Independent variable.

In an experiment the researcher manipulates the independent variable, such as a training method, and observes its effect on the dependent variable, such as performance. The independent variable is the presumed cause; the dependent variable is the effect that is measured.

Controlled and constant variables are the factors held fixed so that they do not influence the result, so they are not responsible for the change.

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