text: how different/similar are iq tests and sats? are they interchangable in any way these two tests are totally and completely different. sat tests are interested in strictly knowledge. basically, how well you can do math and grammar exercises (analogies, etc). iq tests are interested in how logical of a person you are, and how deeply you read into things. there are also lots of "problem solving" kind of questions on there.  in any case, these two types of tests are completely different.  hope this helps.