The three parts of the theory are analytical ability, the ability to analyze things to judge, to criticize. Creative, the ability to create, to invent and discover and practical, the ability to apply and use what you know.

In other words, the better they did on the IQ test, the worse they did on the practical test and the better they did on the practical tests, the worse they did on the IQ test.

Well, first of all, we did lots of studies where we show practical intelligence doesn't correlate with G. We have probably two dozen studies that practical intelligence better predicts job success than IQ.

Robert Sternberg Quotes