Table 4.
Descriptive statistics for the variables used in the current study.
| Variable | M | 95% CI |
SD | Range | Skewness | Kurtosis | Reliability | n | |
|---|---|---|---|---|---|---|---|---|---|
| LL | UL | ||||||||
| Age | 142.460 | 141 | 144 | 8 | 132–156 | 1.269 | -3.584∗ | 136 | |
| LR1 | 15.476 | 14.758 | 16.195 | 4.075 | 8–27 | 0.894 | -1.150 | 0.883 | 126 |
| CR | 22.625 | 21.868 | 23.382 | 4.464 | 13–35 | 0.298 | 1.162 | 0.833 | 136 |
| BDR1 | 16.463 | 15.566 | 17.360 | 5.289 | 7–30 | 1.332 | -1.504 | 0.863 | 136 |
| SSRT2 | 281 | 267.958 | 293.221 | 74.203 | 119–579 | 0.110 | 1.372 | 0.944 | 135 |
| No-Go1 | 13.550 | 12.455 | 14.648 | 6.466 | 3–35 | 1.038 | -0.908 | 0.825 | 136 |
| Simon1 | 16 | 5 | 27 | 63 | -224–142 | 0.587 | 0.816 | 0.585 | 129 |
| SMT2 | 235 | 205 | 265 | 172 | 11–1232 | 0.052 | 1.412 | 0.845 | 131 |
| SSC1 | 144 | 123 | 165 | 122 | -72–571 | 1.65 | 1.582 | 0.865 | 129 |
| FSC1 | 17 | 7 | 27 | 61 | -91–252 | 0.469 | 1.795∗ | 0.715 | 135 |
N = 136. M, mean; CI, confidence interval; LL, lower limit; UL, upper limit; SD, standard deviation; n = size of subsample. LR, Listening Recall; CR, Counting Recall; BDR, Backward Digit Recall; SSRT, Stop-Signal Reaction Time; No-Go, Commission errors on Go/No-Go task; Simon, Simon SR-conflict; SMT, Shape matching SS-conflict; SSC, Stroop SS-conflict; FSC, Flanker SS-conflict. 1Variable transformed using a square root transformation; 2variable transformed using a logarithmic transformation; 3test–retest reliability as reported in the AWMA Manual; 4 internal consistency reliability computed using Split Half correlation; 5internal consistency reliability estimate computed using Split Half correlation with Spearman–Brown correction. ∗p < 0.05.