Yes, Charles, there are lots of kinds of intelligence. Some may not be easily tesible for with pencil and paper. But if you are doind studies you need a way to operatinalize the measures and reduce them to written form so you can do the analysis. Moreoverm, if you are talking about what people normally think of as conceptual intelligence--verbal and mathematical skill, pencil and paper is the natural medium in which to test it.
--jks