Excerpted from The Seven Principles for Making Marriage Work

Predicting Divorce with 91 Percent Accuracy

After years of research I can finally answer these questions. In fact, I am now able to predict whether a couple will stay happily together or lose their way. I can make this prediction after listening to the couple interact in our Love Lab for as little as five minutes! My accuracy rate in these predictions averages 91 percent over three separate studies. In other words, in 91 percent of the cases where I have predicted that a couple's marriage would eventually fail or succeed, time has proven me right. These predictions are not based on my intuition or preconceived notions of what marriage "should" be, but on the data I've accumulated over years of study.

At first you might be tempted to shrug off my research results as just another in a long line of newfangled theories. It's certainly easy to be cynical when someone tells you they've figured out what really makes marriages last and can show you how to rescue or divorce-proof your own. Plenty of people consider themselves to be experts on marriage -- and are more than happy to give you their opinion of how to form a more perfect union.