Question

In this context, what does the author mean by saying that age cannot be an "independent variable"?

It is impossible to isolate the effects of age alone.

Chronological age alone can affect student performance.

Age can be examined independently in experimental research.

Your true age cannot be known because it is independent from your chronological age.

Answer 1

Answer: It is impossible to isolate the effects of age alone.

Explanation: An independent variable is something that can stand alone. Since the author is saying that age cannot be an independent variable, that means that it needs something to help it. You can't determine the effects of an independent variable standing on its own. Hope this helps! =D