Gifted Development Center (GDC) and Pearson Assessments have developed a new composite score for the WISC-V. The newly created Expanded General Ability Index (EGAI) or “Gifted Index” balances the verbal and nonverbal subtests that capture gifted abilities most effectively. The Gifted Index measures verbal, spatial and mathematical reasoning ability (rather than auditory and visual memory, processing speed and eye-hand coordination).