Table 3.
Differences between healthy controls and adults with ADHD on Conners' CPT-II attention test
|
Measures |
Controls mean |
ADHD mean |
ANCOVA* Group F |
Effect Size Cohens d’ |
ROC Area |
|---|---|---|---|---|---|
| [95% CI] | [95% CI] | †q value | [95% CI] | [95% CI] | |
| Errors of Omission |
1.95 |
1.79 |
0.15 |
0.05 |
0.47 |
| |
[0.91-2.98] |
[0.93-2.65] |
p>0.8 |
[-0.41-0.39] |
[0.45-0.60] |
| Errors of Comission |
8.70 |
12.26 |
8.30 |
0.60 |
0.67 |
| |
[7.26-10.15] |
[10.11-14.42] |
p<0.03 |
0.17-1.09 |
0.58-0.77 |
| Correct Reaction Time (RT) |
385.2 |
389.3 |
0.01 |
0.07 |
0.52 |
| |
[370.5-399.9] |
[369.8-408.9] |
p>0.9 |
[-0.34-0.51] |
[0.40-0.64] |
| RT Standard Error (RT SE) |
5.31 |
6.35 |
8.13 |
0.55 |
0.63 |
| |
[4.86-5.77] |
[5.65-7.05] |
p<0.03 |
[0.08-0.86] |
0.53-0.74 |
| Variability in RT by Blocks |
6.76 |
8.65 |
7.55 |
0.48 |
0.63 |
| |
[5.87-7.65] |
[7.14-10.16] |
p<0.03 |
[0.08-0.86] |
[0.53-0.74] |
| Discriminability (d prime) |
0.96 |
0.74 |
3.95 |
0.49 |
0.66 |
| |
[0.84-1.07] |
[0.61-0.88] |
p<0.09 |
[0.09-0.96] |
[0.58-0.75] |
| Response Bias (beta) |
0.91 |
0.68 |
1.45 |
0.23 |
0.57 |
| |
[0.62-1.20] |
[0.45-0.92] |
p<0.3 |
[-0.17-0.57] |
[0.58-0.75] |
| Perseverative errors |
0.19 |
0.71 |
7.07 |
0.46 |
0.61 |
| |
[0.03-0.36] |
[0.19-1.23] |
p<0.03 |
[0.11-0.76] |
[0.56-0.66] |
| Change in RT by Blocks |
0 |
0 |
0.02 |
0.08 |
0.51 |
| |
[-0.007-0.007] |
[-0.012-0.017] |
p<0.8 |
[0.36-0.52] |
[0.46-0.56] |
| Change in RT SE by Blocks |
0 |
0 |
0.02 |
0.02 |
0.5 |
| |
[-0.021-0.014] |
[-0.034-0.023] |
p<0.9 |
[-0.04-0.46] |
[0.45-0.56] |
| Change in RT by ISI |
0.05 |
0.07 |
4.5 |
0.43 |
0.61 |
| |
[0.035-0.063] |
[0.056-0.086] |
p<0.08 |
[0.05-0.90] |
[0.58-0.64] |
| Change in RT SE by ISI |
0.01 |
0.06 |
4.41 |
0.39 |
0.6 |
| [-0.011-0.039] | [0.015-0.095] | p<0.08 | [-0.02-0.80] | [0.55-0.66] |
Main effect of group. Effects of Age and Gender were not significant for any measure after correction for multiple comparisons.
†q value = p value adjusted for multiple comparisons using the False Discovery Rate method of Benjamini and Hochberg.