Identify and explain the intelligence tests that David Wechsler created.
a. Wechsler Adult Intelligence Scale (WAIS) - This intelligence test is designed for adults and measures various aspects of intelligence, including verbal comprehension, perceptual reasoning, working memory, and processing speed.

b. Wechsler Intelligence Scale for Children (WISC) - This test is specifically designed for children and measures similar aspects of intelligence as the WAIS, including verbal comprehension, perceptual reasoning, working memory, and processing speed.

c. Wechsler Preschool and Primary Scale of Intelligence (WPPSI) - This test is designed for young children and measures various aspects of intellectual functioning, including verbal and performance abilities, as well as processing speed.

d. Wechsler Nonverbal Scale of Ability (WNV) - This test is designed for individuals who have limited or no verbal skills and measures their nonverbal cognitive abilities, such as reasoning and problem-solving skills.