From the article on preventdisease.com:
Across studies, the researchers used two different methods to manipulate or measure how much individuals relied on their feelings to make their predictions. In some studies, the researchers used an increasingly standard trust-in-feelings manipulatio. In other studies, the researchers simply measured how much participants typically relied on their feelings in general when making predictions.
Due to the nature of our emotions and how they emerge from our unconscious mind, from our internal supercomputer, they tend to reflect more information than our rational mind. Buying a car or getting married are just the kind of decisions that seem to benefit the most from a more emotional, intuitive thought process.
Regardless of the method used, participants who trusted their feelings in general or were induced to trust their feelings experimentally were more accurate in their predictions compared to participants with lower trust in their in their feelings and participants in a control group. Those who trusted their feelings were 25 percent more accurate than those who trusted their feelings less.
Read more at: http://preventdisease.com/news/12/030512_Those-Who-Trust-Their-Intuition-and-Emotions-Can-More-Accurately-Predict-The-Future.shtml