Table 7.
Fisher’s-r-to-z Transformations of Pearson Correlation Coefficients Within and Between Individual Tests in the NIH Toolbox Cognition Battery and the Neuropsychological Battery
Corrected Scores | Uncorrected Scores | ||||||||||||
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Cognitive Domain | NIHTB-CB Test | NP Test l | NP Test 2 | Pearson r NP Test l & NP Test 2 | Pearson r NP Test l & NIHTB-CB | Fisher Z | Pearson r NP Test 2 & NIHTB-CB | Fisher Z | Pearson r NP Test l & NP Test 2 | Pearson r NP Test l & NIHTB-CB | Fisher Z | Pearson r NP Test 2 & NIHTB-CB | Fisher Z |
| |||||||||||||
Processing Speed | Pattern Comparison | Trails A | Digit Symbol Coding | 0.406** | 0.082 | 2.20* | 0.253* | 1.09 | 0.343** | 0.153 | 1.29■ | 0.406** | −0.46 |
Attention & Executive Function | DCCS | Trails B | Stroop Interference | 0.326** | 0.584** | −2.07* | 0.212 | 0.76 | 0.505** | 0.449** | 0.45 | 0.405** | 0.78 |
Flanker | Trails B | Stroop Interference | 0.326** | 0.177 | 1.00 | 0.224* | 0.69 | 0.505** | 0.274* | 1.72■ | 0.285* | 1.63 | |
Working Memory | List Sorting | Letter-Number Sequencing | Digit Span | 0.642** | 0.435** | 1.87■ | 0.530** | 1.08 | 0.679** | 0.484** | 1.89■ | 0.610** | 0.75 |
Note. NIHTB-CB – NIH Toolbox Cognition Battery, NP – conventional neuropsychological test.
P<0.05
P<0.01.
reflects P = 0.05–0.07.