My question1 has been marked "duplicate"2-4 and closed. I believe it's a misunderstanding, since the other question my question has been associated with is different. The other question asks why a given variable becomes non-significant when included in a more complex model. My question asks why a given variable becomes significant when included in a more complex model. That's exactly the opposite, therefore the answers given in the other question (which I read before posting) don't help me.
Is there something I can do to re-open the question?
- Linear regression: why is a variable not significant on its own, but significant together with other variables
- Significant predictors become non-significant in multiple logistic regression
- How can adding a 2nd IV make the 1st IV significant?
- Is there a difference between 'controlling for' and 'ignoring' other variables in multiple regression?