Is there a test for normal intelligence and mental retardation?

The Wechsler Adult Intelligence Test 4th edition (WAIS-IV) and the Wechsler Intelligence Test for Children 5th Edition (WISC-V) are widely accepted as the most authoritative intelligence tests. They measure cognitive abilities in areas such as verbal comprehension, perceptual reasoning, working memory, processing speed, and intelligence quotient. These tests are commonly used to assess conditions like mental retardation, autism spectrum disorders, and other cognitive disabilities.