Wechsler Adult Intelligence Scale
The Wechsler Adult Intelligence Scale (shortly called WAIS) is a kind of test that measures how smart adults are. It was made by David Wechsler. The test checks different parts of being smart, like understanding words, solving problems, and remembering things. The test has been changed many times to make it better. The last change was the fourth one, so it is now called WAIS-IV.