Table 1. demographic information and clinical and cognitive performance scores (means(SD)).
| Control | ADHD | F | Effect Size (95% CI) | |
|---|---|---|---|---|
| N | 60 | 49 | ||
| Age (years) | 13.87 (1.08) | 13.70 (1.48) | 0.48 | 0.13 (-.32-.66) |
| IQ | 116.23 (11.72) | 107.24 (14.92) | 12.41** | 0.67 (3.93–14.05) |
| (Boys:Girls) | 38:22 | 42:7 | X2 = 6.92* | |
| ADHD presentation type (%) | ||||
| Inattentive | — | 61.90 | ||
| Hyperactive | — | 4.76 | ||
| Combined | — | 33.33 | ||
| EATQ | ||||
| Surgencya | 3.60 (0.58) | 3.50 (0.62) | 0.59 | 0.17 (-.13-.34) |
| Fearb | 2.41 (0.63) | 2.58 (0.80) | 1.36 | 0.23 (-.46-.12) |
| Conners’ (Parent) | ||||
| Hyperactivity | 48.55 (9.44) | 70.60 (15.52) | 78.43** | 1.72 (17.11–26.98) |
| Inattention | 48.23 (10.67) | 75.26 (10.63) | 164.65** | 2.53 (22.85–31.20) |
| Learning Problems | 46.23 (4.78) | 61.87 (11.78) | 81.55** | 1.74 (12.21–19.08) |
| Executive Functioning | 49.20 (10.00) | 70.79 (11.90) | 100.20** | 1.96 (17.31–25.87) |
| Conners’ (Teacher) | ||||
| Hyperactivity | 48.83 (7.34) | 62.32 (14.58) | 31.21** | 1.17 (8.69–18.29) |
| Inattention | 48.62 (7.53) | 65.32 (12.10) | 62.05** | 1.66 (12.49–20.91) |
| Learning Problems & | 47.62 (6.89) | 58.56 (10.97) | 32.24** | 1.19 (7.11–14.78) |
| Executive Functioning | ||||
| Go Accuracy (%)c | 10.04* | 0.60 (.02-.07) | ||
| Fear | 96.10 (9.30) | 89.60 (9.10) | ||
| Neutral | 97.30 (9.30) | 93.90 (9.10) | ||
| Happy | 98.40(9.30) | 95.90 (9.10) | ||
| RT (ms)c | 0.08 | 0.06 (-36.25–48.22) | ||
| Fear | 573.29 (123.99) | 557.58 (124.40) | ||
| Neutral | 526.01 (123.99) | 526.18 (124.40) | ||
| Happy | 503.90 (124.55) | 501.49 (124.40) |
Significance based on FDR corrected p values. EATQ = Early Adolescent Temperament Questionnaire; Connors’ = Connors’ rating scale; RT = reaction time
**p < .001
*p < .01
a parent report
b child report
c estimated marginal means after controlling for age and sex presented