A performance score on the Wechsler Adult Intelligence Scale (WAIS) that is higher than all but 2 percent of all scores earns an intelligence score of .

130

Explanation: David Wechsler could be credited with the design of the most widely used individual intelligence test, The Wechsler Adult Intelligence Scale. The Wechsler Adult Intelligence Scale outputs scores for verbal comprehension, perceptual organization, working memory, and processing speed in addition to the overall performance score. Scores obtained are often standardized ( mean of 0 and standard deviation of 1). The intelligence score could be derived from the standardized score of the normal curve.

Therefore from the standardized score, A performance score higher than all but 2% of all scores earns

an intelligence score of 130.

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