And here they are:

First, on a scale of 1 – 5, with 5 being the best, how happy would you be if you and your spouse split up?

It seems self-evident that the answer to this one will correlate highly with the divorce rate.

The second question is a bit more provocative.

On a scale of 1 – 5, with 5 being the best, how happy would your spouse be if you and your spouse split up?

In a six year study of roughly 3,600 couples, the highest rates of divorce were among couples where the spouses answered this question wrong. In other words, they misjudged just how happy their spouse was in their marriage … especially where they overestimated their spouse’s happiness in their marriage.

This group had twice the average divorce rate across the entire study group.

While there’s more than one possible explanation behind this result, the simplest is that the couples in this group do not have good rapport with each other.

And this points to the obvious: check in with your spouse and find out how they really feel about your marriage. If you are both happy, that’s great and you’re done. If your spouse is not as happy as you thought, maybe you can improve things. If your spouse learns that you are not as happy as they thought, maybe they will be motivated to improve things.

Read more in this Yahoo Finance article via Business Insider: How you and your partner answer 2 questions can help predict if your relationship will last