Table 2.
ANOVA results for the group differences in the WISC indices and self-esteem rating
| WISC-IV | |||||||
|---|---|---|---|---|---|---|---|
| variable | indices | Group Mean (SD) | |||||
| ADHD-H | ADHD-I | ADHD-C | F | p-value | ηp2 | ||
| WISC-IV | VCI | 99.94 (18.27) | 85.74 (17.72) | 96.06 (16.58) | 7.52 | <.001 | .10 |
| PRI | 94.90 (9.22) | 85.25 (20.47) | 91.42 (14.08) | 5.58 | .005 | .076 | |
| WMI | 82.19 (18.59) | 72.37 (16.44) | 79.18 (15.57) | 3.74 | .026 | .052 | |
| PSI | 99.64 (15.83) | 83.28 (16.98) | 93.90 (17.35) | 11.48 | .001 | .144 | |
| FSIQ | 92.00 (15.12) | 77.77 (17.77) | 87.06 (15.63) | 9.33 | <.001 | .121 | |
| Self-esteem (CSE) | |||||||
| variable | domain | Group Mean (SD) | |||||
| ADHD-H | ADHD-I | ADHD-C | F | p-value | ηp2 | ||
| CSE | Global | 21.11 (2.18) | 18.14 (3.44) | 17.06 (3.89) | 24.65 | <.001 | .266 |
| Total | 38.52 (5.79) | 33.00 (8.18) | 32.30 (7.00) | 13.18 | <.001 | .162 | |
| Social | 6.45 (1.54) | 5.57 (2.26) | 5.69 (1.64) | 3.72 | .027 | .052 | |
| Educational | 4.94 (1.88) | 3.82 (2.39) | 4.12 (2.24) | 3.85 | .024 | .054 | |
| Family | 5.98 (1.93) | 5.45 (1.40) | 5.42 (1.75) | 1.64 | .198 | .024 | |
Note: WISC Wechsler Intelligence Scale for Children, ADHD-H predominantly hyperactive, ADHD-I predominantly inattentive, ADHD-C Combined, VCI Verbal Comprehension Index, PRI Perceptual Reasoning Index, WMI Working Memory Index, PSI Processing Speed Index, FSIQ Full-Scale Intelligence Quotient, CSE Coopersmith Self-esteem Inventory; Post-hoc comparisons were conducted using the Bonferroni-corrected post-hoc t-tests. All error bars represent s.e.m.; significant results are bolded (p < 0.5)