Table 3.
Multivariate linear regression coefficients for sex, age, and education predicting derived variables
| Neuropsychological test and derived Scores | Age coefficient (SE) | Sexb coefficient (SE) | Education coefficient (SE) | R 2 | F |
|---|---|---|---|---|---|
| Trail making test, raw difference score(s)a | 0.018 (0.001) | 0.011 (0.028) | −0.061 (0.005) | 0.154 | 108.1* |
| Trail making test, ratio scorea | 0.002 (0.000) | −0.0034 (0.016) | 0.023 (0.003) | 0.183 | 20.56* |
| Difference between semantic and phonemic verbal fluency | −0.075 (0.020) | 1.764 (0.427) | 0.055 (0.082) | 0.017 | 10.45* |
| Percentage of Craft story retained | −0.160 (0.041) | 1.071 (0.891) | 0.249 (0.170) | 0.01 | 6.245* |
| Percentage of Benson figure retained | −0.395 (0.040) | −2.261 (0.869) | 0.593 (0.166) | 0.064 | 40.51* |
| Difference between percentage of Craft story and Benson figure retained | 0.235 (0.052) | 3.332 (1.148) | −0.344 (0.219) | 0.016 | 10.75* |
| Error index | 0.035 (0.005) | −0.221 (0.117) | −0.055 (0.022) | 0.027 | 17.27* |
Note. Bolded values indicate a significant predictor at the p < .05. *p < .01 aTrail making test is a dependent variable transformed with the natural log. bSex is coded such that 1 is female, 0 for male.