What happens in a spurious relationship between variables A and B when you control for alternative variables?

Question

Quizplus · Accepted Answer

If the relationship between A and B is completely spurious, controlling for alternative variables will eliminate the relationship entirely. This is because the relationship was only apparent due to the presence of a third variable that affected both A and B. Once that variable is controlled for, the relationship between A and B disappears.

What Happens in a Spurious Relationship Between Variables a and B