Table 5.
Automatic linear modeling assessing the neuropsychological predictors of phonemic fluency (p, r, m).
| Test | R2 | Variables (transformed) | Beta coefficient | SE | t | 95% CI | P | Importance |
|---|---|---|---|---|---|---|---|---|
| Correct answers | 0.479 | Intercept | −46.12 | 9.18 | −5.02 | -64.23, -28.01 | <0.001 | – |
| BNT | 0.868 | 0.179 | 4.85 | 0.51, 1.22 | <0.001 | 0.271 | ||
| Stroop A | 0.215 | 0.052 | 4.1 | 0.11, 0.31 | <0.001 | 0.198 | ||
| ToL-IT | 0.099 | 0.028 | 3.56 | 0.04, 0.15 | <0.001 | 0.146 | ||
| Span (B) | 2.85 | 0.898 | 3.17 | 1.07, 4.62 | 0.002 | 0.116 | ||
| Stroop C | −0.273 | 0.098 | −2.77 | -0.46, -0.07 | 0.06 | 0.088 | ||
| FCSRT-1FR | 0.856 | 0.369 | 2.31 | 0.12, 1.58 | 0.002 | 0.062 | ||
| ToL-PST | −0.045 | 0.021 | −2.12 | -0.08, -0.003 | 0.035 | 0.052 | ||
| Repetitions | 0.088 | FCSRT-TR | −0.048 | 0.017 | −2.92 | −0.08, −0.01 | 0.004 | 0.361 |
| ToL-ET | 0.006 | 0.002 | 2.65 | 0.002, 0.01 | 0.009 | 0.297 | ||
| Intrusions | 0.073 | Intercept | 1.73 | 0.382 | 4.54 | 0.98, 2.49 | <0.001 | – |
| ToL-ET | −0.002 | 0.000 | −3.51 | -0.002, -0.001 | 0.001 | 0.550 | ||
| Clusters | 0.293 | ToL-ET | −0.007 | 0.002 | −3.51 | −0.01, −0.003 | 0.001 | 0.240 |
| Stroop C | −0.082 | 0.027 | −2.98 | −0.13, −0.02 | 0.003 | 0.173 | ||
| Span (B) | 0.703 | 0.253 | 2.77 | 0.20, 1.20 | 0.006 | 0.149 | ||
| Stroop A | 0.039 | 0.014 | 2.70 | 0.01, 0.06 | 0.007 | 0.142 | ||
| BNT | 0.124 | 0.048 | 2.58 | 0.02, 0.21 | 0.010 | 0.130 | ||
| Corsi (F) | 0.570 | 0.273 | 2.08 | 0.03, 1.10 | 0.038 | 0.085 | ||
| ToL-IT | 0.011 | 0.005 | 2.04 | 0.00, 0.02 | 0.042 | 0.081 | ||
| Switches | 0.328 | Intercept | −31.07 | 6.47 | −4.79 | −43.84, −18.29 | <0.001 | – |
| BNT | 0.58 | 0.117 | 4.95 | 0.34, 0.81 | <0.001 | 0.464 | ||
| Stroop A | 0.12 | 0.029 | 4.44 | 0.07, 0.18 | <0.001 | 0.374 | ||
| Corsi (F) | 1.51 | 0.620 | 2.44 | 0.29, 2.74 | 0.015 | 0.113 | ||
| Mean clusters | 0.082 | Intercept | 8.46 | 2.04 | 4.15 | 4.44, 12.49 | <0.001 | – |
| FCSRT-TR | 0.108 | 0.038 | 2.82 | 0.03, 0.18 | 0.005 | 0.335 | ||
| PASAT | 0.061 | 0.027 | 2.29 | 0.009, 0.11 | 0.023 | 0.222 | ||
| TMT-B | −0.014 | 0.006 | −2.18 | −0.02, −0.001 | 0.030 | 0.201 | ||
| %words in clusters | 0.182 | Intercept | 193.26 | 24.51 | 7.88 | 144.90, 241.62 | <0.001 | – |
| Stroop C | −1.81 | 0.350 | −5.19 | −2.51, −1.12 | <0.001 | 0.513 | ||
| Span (B) | 11.68 | 4.03 | 2.89 | 3.73, 19.64 | 0.004 | 0.160 | ||
| ToL-ET | −0.109 | 0.039 | −2.81 | −0.18, −0.03 | 0.005 | 0.151 | ||
| Rey-3 min | 1.51 | 0.595 | 2.54 | 0.34, 2.68 | 0.012 | 0.123 | ||
| Words in clusters | 0.332 | Stroop C | −0.430 | 0.107 | −4.03 | −0.64, −0.22 | <0.001 | 0.273 |
| ToL-ET | −0.026 | 0.008 | −3.28 | −0.04, −0.01 | 0.001 | 0.181 | ||
| ToL-IT | 0.054 | 0.020 | 2.72 | 0.01, 0.09 | 0.007 | 0.124 | ||
| BNT | 0.503 | 0.198 | 2.54 | 0.11, 0.89 | 0.012 | 0.108 | ||
| Stroop B | 0.216 | 0.089 | 2.43 | 0.04, 0.39 | 0.016 | 0.099 | ||
| Span (B) | 2.402 | 1.08 | 2.21 | 0.25, 4.54 | 0.028 | 0.082 |
First column shows criterion variables and the third column shows predictor variables. SE, Standard Error; BNT, Boston Naming Test; ToL-IT, Tower of London (ToL)–initiation time; Span (B), verbal span backward; FCSRT-1FR, Free and Cued Selective Reminding Test (FCSRT)–trial 1 free recall; ToL-PST, ToL–problem-solving time; FCSRT-TR, FCSRT–total recall; ToL-ET, ToL–execution time; Corsi (F), Corsi's test forward; TMT-B, Trail Making Test part B; Rey-3 min, Rey-Osterrieth Complex Figure (ROCF) free recall after 3 min.