You chose to account for whether study participants had a healthydiet and a regular exercise routine. These factors that can reduce confidence in your results are known as:___________A. correlational variables.B. experimental variables.C. unfounded variables.D. confounding variables.

A confounding variable is simply referred to as an outside influence which can bring about alterations to the dependent and the independent variable such that the result of the experiment research is influenced.

Therefore, the factors that can reduce confidence in your results are known as confounding variables. They can bring about useless results and also ruin a research.

annyksl annyksl · Answer 2 · 2021-11-11T18:17:19+01:00

The variable that reduces the confidence of the results is the confounding variable, as shown in option D.

We can arrive at this answer because:

Confounding variable is a statistical term used to describe factors that generate confusion in the analysis of the experiment.
This is because these factors can interfere in both the establishment of the dependent variable and the independent variable.
This interference modifies the interaction between the two main variables, which can discredit the result of the experiment.

For this reason, it is favorable that an experiment be established, reducing the existence of the confounding variable, so that the credibility of the result is greater.

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