Which variable is deliberately changed by the experimenter?

Which variable is deliberately changed by the experimenter?

• A. Dependent Variable
• B. Independent Variable
• C. Constant
• D. Control

Answer: (B)

The main idea is that the independent variable is the one the experimenter deliberately changes to see its effect on the outcome. By adjusting this variable, you’re testing how different conditions influence what you’re measuring. The thing you measure in response is the dependent variable, which shows how the manipulated factor affects it. Everything else in the setup is kept constant to ensure that any observed change is due to the manipulation of the independent variable. A control is a baseline condition used for comparison, usually identical to the experimental setup except that the independent variable isn’t changed. So, the variable you actively modify to test a cause-and-effect relationship is the independent variable.

The main idea is that the independent variable is the one the experimenter deliberately changes to see its effect on the outcome. By adjusting this variable, you’re testing how different conditions influence what you’re measuring. The thing you measure in response is the dependent variable, which shows how the manipulated factor affects it. Everything else in the setup is kept constant to ensure that any observed change is due to the manipulation of the independent variable. A control is a baseline condition used for comparison, usually identical to the experimental setup except that the independent variable isn’t changed. So, the variable you actively modify to test a cause-and-effect relationship is the independent variable.