Wechsler IQ Tests and What They Measure

David Wechsler developed IQ tests that measure several parts of intelligence, not just one score. He was a psychologist who worked with World War I veterans, and in 1939 he created the Wechsler-Bellevue Intelligence Scale. His view of intelligence included purposeful action, rational thinking, and effective interaction with ...

David Wechsler, a psychologist, believed intelligence involves purposeful action, rational thinking, and effective interaction with the environment.

He developed the Wechsler-Bellevue Intelligence Scale in 1939 by combining subtests that assessed both verbal and nonverbal intelligence.

This test evolved into the Wechsler Adult Inte...