Sure, you could. I was answering the question "why do iq tests rely heavily on pattern recognition?", and I think one big answer is that symbols don't need to b

Sure, you could. I was answering the question "why do iq tests rely heavily on pattern recognition?", and I think one big answer is that symbols don't need to be explained. Reflecting and reading your answer, I think ease of giving, grading, manufacture and transport of the test, are also parts of the equation.