Data
603,346 items of data are available, covering 496,590 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are milliseconds.
| Maximum | 2000 |
| Decile 9 | 711 |
| Decile 8 | 641 |
| Decile 7 | 602 |
| Decile 6 | 570 |
| Median | 544 |
| Decile 4 | 520 |
| Decile 3 | 499 |
| Decile 2 | 473 |
| Decile 1 | 445 |
| Minimum | 63 |
|
|
- There are 1260 distinct values.
- Mean = 566.032
- Std.dev = 118.149
- 5388 items above graph maximum of 977
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
496,344 participants, 496,344 items
| Maximum | 2000 |
| Decile 9 | 703 |
| Decile 8 | 633 |
| Decile 7 | 594 |
| Decile 6 | 563 |
| Median | 539 |
| Decile 4 | 515 |
| Decile 3 | 492 |
| Decile 2 | 469 |
| Decile 1 | 440 |
| Minimum | 63 |
|
|
- There are 1156 distinct values.
- Mean = 559.659
- Std.dev = 117.998
- 4863 items above graph maximum of 966
|
Instance 1 : First repeat assessment visit (2012-13)
20,248 participants, 20,248 items
| Maximum | 1713 |
| Decile 9 | 695 |
| Decile 8 | 630 |
| Decile 7 | 594 |
| Decile 6 | 563 |
| Median | 539 |
| Decile 4 | 516 |
| Decile 3 | 492 |
| Decile 2 | 469 |
| Decile 1 | 441 |
| Minimum | 316 |
|
|
- There are 509 distinct values.
- Mean = 557.477
- Std.dev = 110.987
- 156 items above graph maximum of 949
|
Instance 2 : Imaging visit (2014+)
78,368 participants, 78,368 items
| Maximum | 1809 |
| Decile 9 | 746 |
| Decile 8 | 682 |
| Decile 7 | 643 |
| Decile 6 | 612 |
| Median | 586 |
| Decile 4 | 562 |
| Decile 3 | 539 |
| Decile 2 | 515 |
| Decile 1 | 484 |
| Minimum | 150 |
|
|
- There are 887 distinct values.
- Mean = 605.027
- Std.dev = 113.547
- 588 items above graph maximum of 1008
|
Instance 3 : First repeat imaging visit (2019+)
8,386 participants, 8,386 items
| Maximum | 1747 |
| Decile 9 | 738.5 |
| Decile 8 | 676 |
| Decile 7 | 637 |
| Decile 6 | 608 |
| Median | 581 |
| Decile 4 | 558 |
| Decile 3 | 535 |
| Decile 2 | 511 |
| Decile 1 | 480 |
| Minimum | 172 |
|
|
- There are 470 distinct values.
- Mean = 599.477
- Std.dev = 109.932
- 49 items above graph maximum of 997
|
Notes
This field is the mean duration to first press of snap-button summed over rounds in which both cards matched. It gives a crude measure of the raw processing+reaction speed of a participant.
The following data points were excluded when forming the average:
- Rounds 0-4 were regarded as "training";
- Times under 50ms must be due to anticipation rather than reaction;
- Times over 2000ms were ignored as the cards had disappeared by then.
Values were rounded to the nearest whole number.
