Question

How does confounding variables affect the validity of the study?

Answer 1

To ensure the internal validity of your research, you must account for confounding variables. ... For instance, you may find a cause-and-effect relationship that does not actually exist, because the effect you measure is caused by the confounding variable (and not by your independent variable).

Answer 2

Answer:

confounding variables are present, that it, if there are differences between the groups other than the differences in the independent variable, this causal explanation is destroyed. This condition is called a threat to the internal validity of the study.

Explanation:

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