Table 6.
Intraclass Correlation Coefficients (ICC) and Pearson Correlation Coefficients for the NIH Toolbox Cognition Battery and the Neuropsychological Battery Processing Speed, Attention and Executive Function, and Working Memory Tests
| Corrected Scores | Uncorrected Scores | ||||||
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Tests | ICC Absolute (95% CI) | ICC Consistency (95% CI) | Pearson r | ICC Absolute (95% CI) | ICC Consistency (95% CI) | Pearson r | |
|
| |||||||
| Processing Speed | Pattem Comparison & Trails A | 0.081 (−0.138, 0.292) | 0.081 (−0.136, 0.290) | 0.082 | 0.139 (−0.057, 0.330) | 0.153 (−0.064, 0.356) | 0.153 |
| Pattern Comparison & Digit Symbol Coding | 0.244 (0.036, 0.434) | 0.248 (0.036, 0.439) | 0.253* | 0.378 (0.175, 0.549) | 0.405 (0.208, 0.570) | 0.406** | |
| Trails A and Digit Symbol Coding | 0.399 (0.205, 0.564) | 0.406 (0.209, 0.571) | 0.406** | 0.344 (0.140, 0.521) | 0.343 (0.139, 0.519) | 0.343** | |
| Flanker & Trails B | 0.144 (−0.072, 0.348) | 0.086 (−0.066, 0.252) | 0.177 | 0.182 (−0.035, 0.382) | 0.181 (−0.035, 0.381) | 0.274* | |
| Attention & Executive Function | Flanker & Stroop Interference | 0.152 (−0.039, 0.342) | 0.192 (−0.028, 0.394) | 0.224* | 0.181 (−0.040, 0.385) | 0.180 (−0.040, 0.383) | 0.285* |
| DCCS & Trails B | 0.318 (0.110, 0.499) | 0.316 (0.109, 0.497) | 0.323** | 0.288 (0.132, 0.515) | 0.377 (0.132, 0.515) | 0.449** | |
| DCCS & Stroop Interference | 0.196 (−0.009, 0.389) | 0.211 (−0.008, 0.411) | 0.212 | 0.253 (0.041, 0.444) | 0.294 (0.080, 0.481) | 0.405** | |
| Trails B & Stroop Interference | 0.308 (0.324, 0.654) | 0.325 (0.114, 0.507) | 0.326** | 0.508 (0.324, 0.654) | 0.505 (0.321, 0.651) | 0.505** | |
| Flanker & DCCS | 0.283 (−0.095, 0.583) | 0.529 (0.354, 0.668) | 0.584** | 0.328 (−0.099, 0.642) | 0.601 (0.444, 0.723) | 0.611** | |
| Working Memory | List Sorting Working Memory & Letter-Number Sequencing | 0.407 (0.208, 0.573) | 0.433 (0.241, 0.592) | 0.435** | 0.406 (0.182, 0.583) | 0.452 (0.263, 0.608) | 0.484** |
| List Sorting Working Memory & Digit Span | 0.529 (0.356, 0.668) | 0.530 (0.356, 0.669) | 0.530** | 0.513 (0.261, 0.684) | 0.574 (0.409, 0.702) | 0.610** | |
| Letter-Number Sequencing & Digit Span | 0.622 (0.462, 0.741) | 0.640 (0.493, 0.751) | 0.642** | 0.682 (0.547, 0.782) | 0.679 (0.544, 0.780) | 0.679** | |
Note. ICC – Intraclass correlation coefficient, CI – Confidence interval. Flanker – Flanker Inhibitory Control and Attention, DCCS – Dimensional Change Card Sort.
*
P<0.05
**
P<0.01.