Which of the Following Is True About the Wechsler Tests

Multiple Choice

Which of the following is true about the Wechsler tests?

A) The three tests are used for individuals aged 4 through 85+, based on expected intellectual levels.
B) The tests have been created independently and have little in common.
C) The WISC-IV is a downward extension of the WAIS-IV, and the WPPSI-III is a downward extension of the WISC-IV.
D) The tests show little or no correlation with the Stanford-Binet.