Table 4. .
Correlations between behavioral measures
| WAB-R Yes/No | Word-to-picture matching | MLU | Digit span fwd | Digit span bwd | Digit span diff | Spatial span fwd | Spatial span bwd | Spatial span diff | |
|---|---|---|---|---|---|---|---|---|---|
| PNT | 0.277* | 0.679*** | 0.491*** | 0.562*** | 0.529*** | 0.313* | 0.314* | 0.253* | 0.055 |
| WAB-R Yes/No | 0.337** | 0.332* | 0.471*** | 0.304* | 0.374** | 0.140 | 0.032 | 0.137 | |
| Word-to-picture matching | 0.456*** | 0.340** | 0.440*** | 0.079 | 0.401*** | 0.416*** | −0.069 | ||
| MLU | 0.474*** | 0.626*** | 0.092 | 0.190 | 0.252 | −0.104 | |||
| Digit span fwd | 0.680*** | 0.780*** | 0.379** | 0.261* | 0.128 | ||||
| Digit span bwd | 0.071 | 0.474*** | 0.490*** | −0.065 | |||||
| Digit span diff | 0.110 | −0.063 | 0.230 | ||||||
| Spatial span fwd | 0.723*** | 0.292* | |||||||
| Spatial span bwd | −0.450*** |
Note. Correlations are performed for the full sample (N = 64). Sample size varies between 57 and 64 on individual correlations because of missing values on some tests. PNT = Philadelphia Naming Test, WAB-R = Western Aphasia Battery-Revised, MLU = mean length of utterance, fwd = forwards, bwd = backwards, diff = difference. ***p < 0.05 after Bonferroni correction for 33 comparisons, **p < 0.01 uncorrected, *p < 0.05 uncorrected.