Table 1: Raw Scores, Scaled Scores and Percentile Ranks Obtained by Mr A and the Controls on the WAIS-IV.
Note: Standard deviations for the controls are displayed in brackets. * Represents values outside of 1 SD from the mean of the controls. ** Represents values outside of 2 SD from the mean of the controls. *** Represents values outside of 3 SD from the mean of the controls.
| Mr A | Controls |
| Raw Score | Scaled Score | Percentile | Average Raw Score | Average Scaled Score | Average Percentile |
| Full Scale Intelligence Quotient | - | 118.00 | 88.00 | - | 123.00 (6.32) | 92.25 (5.91) |
| General Ability Index | - | 127.00 | 96.00 | - | 124 (8.37) | 92.75 (5.06) |
| Verbal Comprehension Index | - | 114.00 | 82.00 | - | 123.50 (13.70) | 88.50 (13.77) |
| Perceptual Reasoning Index | - | 133.00* | 99.00 | - | 118.25 (13.60) | 82.50 (25.01) |
| Working Memory Index | - | 100.00** | 50.00*** | - | 116.50 (6.35) | 85.00 (9.24) |
| Processing Speed Index | - | 105.00 | 63.00 | - | 113.25 (13.05) | 75.00 (17.87) |
| Vocabulary | 36.00* | 10.00* | 50.00* | 46.25 (8.77) | 14.00 (3.65) | 80.65 (23.32) |
| Information | 21.00 | 15.00 | 95.00 | 21.00 (1.41) | 14.75 (0.96) | 93.75 (3.40) |
| Similarities | 30.00 | 13.00 | 84.00 | 30.50 (2.52) | 13.50 (2.52) | 82.50 (14.80) |
| Block Design | 59.00 | 14.00 | 91.00 | 51.25 (15.56) | 12.00 (3.37) | 70.50 (36.48) |
| Matrix Reasoning | 26.00* | 19.00* | 99.90* | 23.75 (1.50) | 15.00 (2.00) | 93.15 (4.30) |
| Visual Puzzles | 21.00 | 14.00 | 91.00 | 19.50 (4.43) | 12.50 (3.11) | 73.75 (32.82) |
| Digit Span Total | 25.00*** | 8.00*** | 25.00*** | 32.25 (1.50) | 11.75 (0.96) | 71.25 (10.21) |
| Digit Span Forwards | 10.00* | 9.00* | 37.00* | 11.50 (1.00) | 10.75 (1.50) | 58.50 (17.00) |
| Digit Span Backwards | 6.00** | 7.00** | 16.00** | 10.00 (1.41) | 11.25 (1.71) | 64.75 (20.40) |
| Digit Span Sequencing | 9.00* | 10.00* | 50.00* | 10.75 (0.96) | 12.25 (1.50) | 75.25 (14.43) |
| Arithmetic | 17.00* | 12* | 75.00* | 19.00 (1.83) | 14.25 (2.22) | 88.25 (10.87) |
| Coding | 80.00 | 11.00 | 63.00 | 84.00 (15.30) | 12.25 (2.99) | 70.50 (26.56) |
| Symbol Search | 36.00 | 11.00 | 63.00 | 40.00 (6.27) | 12.75 (2.50) | 76.75 (20.19) |