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The independent variable is the variable that the scientist controls and can change in an experiment. There should be only one independent variable in an experiment; otherwise the cause-and-effect of the independent variable cannot be determined.

The dependent variable is the variable that is affected by the independent variable.

EXAMPLE:

Students of the same age have been given different sleeping hours (the independent variable)

The next day they are tested for their performance (the dependent variable).

(Having students the same age is a third type of variable, called the constant variable or the control variable. It is deliberately kept the same to reduce any effects on the outcome.)

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Q: What does independent variable and dependent variable mean?
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Related questions

Does independent and Dependent variable's mean in math?

An independent variable is a variable that isn't affected by something else. A dependent variable is a variable that's affected by changes in the independent variable.


What does dependent variable and independent variable mean in math?

An independent variable is a variable that isn't affected by something else. A dependent variable is a variable that's affected by changes in the independent variable.


What is independent a dependent variables?

The independent variable is the variable that is altered by the scientist, and the dependent variable's value is dependent on the value of the independent variable.


Which variable is independent and which variable is dependent?

and independent variable is bigger than a dependent variable


What causes change in a dependent variable?

The dependent variable is dependent on the independent variable, so when the independent variable changes, so does the dependent variable.


What is the dependent and independent in a experiment?

The independent variable of an experiment is the variable that you change, and the dependent variable is the result of the independent variable.


Does the independent or dependent variable change?

The Independent variable is the one you control. The dependent variable is controlled by the Independent Variable.


Independent and dependent variable?

Math: Independent variable is what you change. Dependent variable is what you measure.


How does the independent variable affects the dependent?

the dependent variable changes based on the independent variable


What are the differences between independent and dependent variables?

An independent variable is the variable you can change in an experiment. On a graph, it's on the X-axis. A dependent variable is the result of changing the independent variable. It is literally dependent on it. The dependent variable goes on the Y-axis.


What is a dependent variable is?

is dependent on the independent variable


Manipulated independent variable?

The manipulated/independent variable is a variable that changes and it is what the responding/dependent variable change because of the manipulated variable.