Table 2 Descriptive statistics of individual measure performance
Outcome | Mean | SD | Min | P50 | Max | Skewness | Kurtosis | Internal Reliability | |
|---|---|---|---|---|---|---|---|---|---|
Traditional Clinical neuropsychological tests | |||||||||
Letter cancellation | Num. correct | 92.247 | 21.809 | 8 | 91 | 152 | 0.010 | 3.108 | 0.95 |
Digit symbol coding | n. correct trials | 55.047 | 13.693 | 16 | 54 | 116 | 0.861 | 5.371 | 0.93 |
Backward digit span | Length of longest sequence | 6.102 | 2.031 | 1 | 6 | 11 | 0.385 | 2.747 | 0.68 |
Forward digit Span | Length of longest sequence | 6.929 | 1.665 | 1 | 7 | 11 | 0.252 | 2.819 | 0.73 |
Arithmetic | Points | 21.231 | 6.019 | 3 | 22 | 37 | − 0.300 | 2.730 | 0.85 |
Spatial span | Span | 5.423 | 0.970 | 0 | 5 | 7 | − 0.720 | 6.268 | 0.58 |
TMT-A | Resp. Time (ms) | 32,517.290 | 18,753.160 | 12,168 | 26,579 | 177,934 | 2.599 | 13.347 | 0.95 |
Log(TMT-A) | − 10.273 | 0.456 | − 12.089 | − 10.188 | − 9.407 | − 0.792 | 3.511 | ||
TMT-B | Resp. Time (ms) | 47,964.500 | 26,575.030 | 14,419 | 40,647.5 | 286,388 | 3.040 | 19.373 | 0.96 |
Log(TMT-B) | − 10.671 | 0.441 | − 12.565 | − 10.613 | − 9.576 | − 0.644 | 3.754 | ||
Cognitive Psychology/experimental Paradigms | |||||||||
Approximate number sense | Accuracy | 0.812 | 0.055 | 0.540 | 0.815 | 0.930 | − 0.596 | 4.058 | 0.60 |
Multiple object tracking | Accuracy | 0.822 | 0.094 | 0.514 | 0.833 | 1.028 | − 0.509 | 2.928 | 0.92 |
Visual working memory | Number correct | 34.421 | 4.031 | 20 | 35 | 42 | − 0.668 | 3.334 | 0.67 |
Flanker interference | Conflict Resp. time | 0.108 | 0.149 | − 0.833 | 0.083 | 0.917 | 0.760 | 9.334 | 0.85 |
Visual search | Search slope (ms/item) | 57.450 | 20.129 | − 12.070 | 55.625 | 138.180 | 0.390 | 3.856 | 0.75 |
Gradual onset CPT | d' | 2.744 | 0.808 | − 1.356 | 2.832 | 4.653 | − 0.845 | 4.942 | 0.88 |