Intelligence Tests And Autism IQ tests are regularly used during the process of an autism diagnosis. However, this is controversial. Many people believe intelligence tests are designed to test the intellectual abilities in neurotypicals and are therefore inappropriate for autistics. Some people believe separate intelligence tests need to be designed, specifically with autistics in mind. In addition, there has long been controversy over IQ tests in general. Some people don't believe intelligence is testable at all, and others believe IQ only tests a person's ability to do well on IQ tests and doesn't test anything useful.