There was a study done which found that people who ate chocolate were more likel

Question

There was a study done which found that people who ate chocolate were more likely to have a lower BMI. The researchers suggested that eating candy does not help you to lose weight but that perhaps candy consumers exercise more to make up for the candy they eat. Should exercise be a confounding variable or an interacting variable? There was a study done which found that people who ate chocolate were more likely to have a lower BMI. The researchers suggested that eating candy does not help you to lose weight but that perhaps candy consumers exercise more to make up for the candy they eat. Should exercise be a confounding variable or an interacting variable?

Explanation / Answer

A confounding variable is the variable that influences both the dependent variable and independent variable causing a spurious association. These are the variables that the researcher failed to control, or eliminate, damaging the internal validity of an experiment.

The two (or more) variables that interact with each other to produce an interaction effect are called the interacting variables.

Thus excercise is a confounding vaiable.

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