0. Of the following, the author of a widely used intelligence test is:
David Wechsler developed the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC), which are some of the most commonly used intelligence tests worldwide.
Option A: David Wechsler
Correct; creator of widely recognized intelligence tests like WAIS and WISC.
Option B: B.F. Skinner
Incorrect; known for behaviorism and operant conditioning, not intelligence testing.
Option C: William Cruikshank
Incorrect; contributed to special education, not intelligence testing specifically.
Option D: Bruno Bettelheim
Incorrect; worked in child psychology, not intelligence test design.