The primary reason that confounding variables pose problems for researchers is because they tend to Group of answer choices be difficult to explain scientifically. be difficult to measure. vary in magnitude. vary along with one another.

vary along with one another.

Explanation:

Confounding variable is a term in research methodology that describes a form of an additional variable that the researcher did not prepare for.

In other words, it is considered as an external influence that alters the effect of a dependent and independent variable. For example, the weather could be considered as a confounding variable that may change the effect of the experiment design.

However, because confounding variables vary along with one another, they have the tendency to ruin an experiment and lead to worthless results. They can also initiate bias.

Hence, the primary reason that confounding variables pose problems for researchers is that they tend to VARY ALONG WITH ONE ANOTHER.

hello,

your answer is ready

i believe its either the first or third option but i'm leaning more towards the third option:

the first excerpt makes a logical appeal, while the second excerpt makes an emotional appeal.

your pal

~papaguy

elastic potential energy