If you are studying depression rates during the cold winter months, a potential confounding variable could be the stress of the busy holiday season.
What is a confounding variable ? How do we define them?
"Confounding variables are those that affect other variables in a way that produces spurious or distorted associations between two variables. They confound the "true" relationship between two variables."
"If you identify a causal relationship between the independent variable and the dependent variable, that relationship might not actually exist because it could be affected by the presence of a confounding variable."
Hence the answer is Confounding variables.
To know more about Confounding variables click below
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