Observed and adjusted means (SD) and effect size of differences
| Tests | Observed mean (SD) | Adjusted mean (SD) | Effect size (d) |
| Orientation: | |||
| Time | 3.2 (1.7) | 3.1 (1.7) | −0.1 |
| Place | 3.8 (1.6) | 3.7 (1.7) | −0.1 |
| Boston naming test (abbreviated) | 12.4 (2.8) | 12.4 (2.8) | 0 |
| GIT-IQ (abbreviated ) | 83.4 (15.4) | 70.5 (23.6) | −0.85-160 |
| Similarities (WAIS) | 3.5 (4.6) | 2.5 (4.1) | −0.2 |
| Proverbs (information WAIS) | 0.8 (1.6) | 0.7 (1.5) | −0.1 |
| Digit symbol (WAIS) | 23.9 (9.9) | 15.4 (14.1) | −0.95-160 |
| Trail making test A (s) | 86.2 (48.0) | 111.8 (72.8) | 0.95-160 |
| Trail making test B (s) | 194.9 (77.1) | 266.0 (69.7) | 0.95-160 |
| Modified WCST categories | 1.8 (1.5) | 1.3 (1.0) | −0.3 |
| Modified WCST perseverations (%) | 62.8 (27.6) | 84.8 (24.6) | −0.85-160 |
| Category fluency animals (GIT) | 7.9 (5.7) | 7.4 (5.6) | −0.1 |
| Category fluency professions (GIT) | 6.1 (4.7) | 5.3 (4.8) | −0.2 |
| Digit span forwards (WAIS) | 4.8 (.9) | 4.7 (1.0) | −0.1 |
| Digit span backwards (WAIS) | 2.6 (1.4) | 2.4 (1.6) | −0.1 |
| Word list learning total (z score) | −2.5 (1,4) | −3.1 (1.7) | −0.45-150 |
| Word list learning recall (z score) | −0.4 (1.0) | −0.4 (0.9) | 0 |
| Drawing clockface | 1.7 (1.1) | 1.6 (1.1) | −0.1 |