The Index Scores of the WAIS-IV, representing the major ability factors that underlie the subtest scores, are
a. Comprehension, Picture Completion, Letter-Number Sequencing, and Cancellation.
b. Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed.
c. Verbal Processing Speed and Nonverbal Processing Speed.
d. Verbal and Performance.
Question 2
What is the purpose of the reversal items on the WAIS-IV?
a. They assess examinees' ability to undo various mathematical operations in their heads.
b. They assess the speed with which examinees are able to break physical objects down into their component parts.
c. both of the above
d. They reduce the number of items examinees must complete that are well below their ability levels.
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