What are control variables in research?
Control variables are factors that researchers keep constant to prevent them from influencing the outcome of an experiment.
Can you give me an example of control variables?
Sure! In a study on the effects of study time on test scores, control variables could include the students' age, prior knowledge, and test difficulty.
Why are control variables important?
They are crucial because they help ensure that the results of the study are due to the independent variable, not other factors.
How do I choose control variables for my study?
Choose control variables based on factors that could affect your dependent variable, ensuring they are relevant to your research question.
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