The Wechsler Adult Intelligence Scale (WAIS) is a test used to measure the intelligence quotient (IQ) of older adolescents and adults.
Answer 1: The verbal score represents sub-test scores on verbal tasks, such as vocabulary, comprehension, and general knowledge. On the WAIS, the verbal sub-test comprises of a major part of test questions. This section measures an individual's verbal comprehension, vocabulary, declarative knowledge, and ability to identify similarities.
Answer 2: The performance score represents sub-test scores on nonverbal tasks, such as identifying missing parts in incomplete pictures, arranging pictures to tell a story, or arranging blocks to match a pattern. The performance section also comprises of a large part of the questions on the WAIS IQ test. This sub-test measures an individual's visual processing ability, visual memory, abstract reasoning skills and spatial reasoning.