Question

Professor Stenson is examining the effects of color on patients’ anxiety levels. She randomly assigns patients to either a room painted white or a room painted black, and then records their blood pressure. In this case, the independent variable is the

Answer 1

The independent variable is the color of the room the patients are in.

Answer 2

In the given case, the independent variable is the color of the room.

• A variable, which stands alone and does not get changed by the influence of other variables is known as the independent variable.

• It is an unknown quantity whose quantity does not get influenced by the presence of other variables.

• In the given case, the color of the room can be considered as the independent variable.

Thus, the correct answer is color of the room.

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