Dependent variable
Definition
A dependent variable is the outcome or response that researchers measure in an experiment to see if it changes due to manipulation of the independent variable. It is dependent on the conditions set by the experimenter.
5 Must Know Facts For Your Next Test
- The dependent variable is typically plotted on the y-axis of a graph.
- It must be measurable and quantifiable for statistical analysis.
- Changes in the dependent variable are what researchers analyze to determine effects.
- In a well-designed experiment, only one dependent variable should be measured at a time to avoid confounding results.
- Dependent variables can be influenced by both controlled variables (independent variables) and uncontrolled external factors.
Review Questions
- What role does a dependent variable play in an experimental study?
- How do researchers ensure that changes in the dependent variable are due to the independent variable?
- Why is it important for a dependent variable to be measurable and quantifiable?
"Dependent variable" appears in:
Subjects (8)
Related terms
Independent Variable: The factor that is manipulated or controlled by researchers to observe its effect on the dependent variable.
Control Group: A group in an experiment that does not receive the treatment, used as a benchmark to measure how the other tested subjects do.
Confounding Variable: An outside influence that changes the effect of a dependent and independent variable, potentially leading to erroneous conclusions.
