![]() Your dependent variable is math test scores. You vary the room temperature by making it cooler for half the participants, and warmer for the other half. Your independent variable is the temperature of the room. Its value depends on changes in the independent variable.Įxample: Independent and dependent variablesYou design a study to test whether changes in room temperature have an effect on math test scores. Its value is independent of other variables in your study. The independent variable is the cause.Researchers often manipulate or measure independent and dependent variables in studies to test cause-and-effect relationships. In research, variables are any characteristics that can take on different values, such as height, age, temperature, or test scores. Dependent Variables | Definition & Examples
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