Table 1.
Task | Outcome measures | A) Descriptives: Performance results |
B) Linear regression results |
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Number of participants | Mean | Median | SD | Intercept (0) |
Age |
Sex |
Education |
Regression statistics |
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β | SE | β (ßage) (unstd) | P Value | β (ßsex) (unstd) | P Value | β (ßeducation) (unstd) | P Value | SD of residuals (unstd) | Adjusted R2 | ||||||
Paired associate learning | (1) Total errors adjusted | 1349 | 34.3 | 40 | 16.7 | −0.48 | 4.67 | 0.55 | <.001 | −1.20 | .21 | −4.73 | <.001 | 16.04 | 0.07 |
(2) First attempt memory score | 1349 | 7.9 | 8 | 3.9 | 14.59 | 1.08 | −0.11 | <.001 | 0.35 | .11 | 1.41 | <.001 | 3.86 | 0.07 | |
Spatial working memory | (3) Between errors | 1529 | 21.8 | 23 | 9.5 | −4.67 | 2.40 | 0.39 | <.001 | 1.73 | <.001 | −2.61 | <.001 | 8.96 | 0.12 |
(4) Strategy | 1529 | 18.3 | 19 | 2.7 | 12.09 | 0.70 | 0.09 | <.001 | 0.87 | <.001 | −0.23 | .12 | 2.54 | 0.08 | |
Processing speed | (5) Median simple reaction time | 1501 | 289.0 | 281.5 | 43.0 | 249.84 | 11.63 | 0.57 | .001 | 3.82 | .11 | −3.39 | .16 | 42.70 | 0.01 |
(6) Median five-choice reaction time | 1502 | 327.7 | 322.5 | 43.6 | 263.50 | 11.65 | 0.92 | <.001 | 4.48 | .06 | −1.58 | .52 | 43.06 | 0.02 |
Abbreviations: PAL, paired associate learning; SWM, spatial working memory; RTI, reaction time; SD, standard deviation; SE, standard error; unstd, unstandardized.