If you drink caffeine, will you be more tired than if you did not drink caffeine is an example of dependent variable.
What is a variable in science?
- A variable is a factor that can be manipulated, changed or controlled while performing scientific experiments.
- Variables are of 3 types: independent, dependent and controlled variables.
- A dependent variable is the one that changes as a result of manipulating independent variable in experiments.
- Independent variable consists of conditions that can be manipulated in experiments and thus affect the dependent variables.
- A control group is the one which is used as a standard while performing the experiments. This group contains the normal data to which no manipulations are made.
- An experimental group is the one to which we perform experiments. This group receives the treatment and is used to test a hypothesis.
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