If I have a Verbal Ability scaled score of 407 and a percentile rank of 60, what does this really mean?
Scaled scores for the multiple-choice subtests are always on a scale of 200–600, are based on the number of core (live) items correct, and are calculated separately for each multiple-choice subtest. Experimental items do not count towards your score. A percentile rank indicates the percentage of examines (from the current norm group only) who received a scaled score lower than a given score. For example, a percentile rank of 60 indicates that 60% of the examinees in the norm group received a lower scaled score on Verbal Ability than 407.