Data
582,774 items of data are available, covering 496,753 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are milliseconds.
| Maximum | 2000 |
| Decile 9 | 707 |
| Decile 8 | 640 |
| Decile 7 | 598 |
| Decile 6 | 569 |
| Median | 543 |
| Decile 4 | 520 |
| Decile 3 | 496 |
| Decile 2 | 473 |
| Decile 1 | 442 |
| Minimum | 63 |
|
|
- There are 1257 distinct values.
- Mean = 564.159
- Std.dev = 117.836
- 5413 items above graph maximum of 972
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
496,547 participants, 496,547 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 = 559.65
- Std.dev = 118
- 4867 items above graph maximum of 966
|
Instance 1 : First repeat assessment visit (2012-13)
20,254 participants, 20,254 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 = 557.457
- Std.dev = 110.985
- 156 items above graph maximum of 949
|
Instance 2 : Imaging visit (2014+)
60,889 participants, 60,889 items
| Maximum | 1809 |
| Decile 9 | 741 |
| Decile 8 | 678 |
| Decile 7 | 639 |
| Decile 6 | 608 |
| Median | 581 |
| Decile 4 | 558 |
| Decile 3 | 535 |
| Decile 2 | 511 |
| Decile 1 | 480 |
| Minimum | 150 |
|
|
- There are 813 distinct values.
- Mean = 600.834
- Std.dev = 112.564
- 448 items above graph maximum of 1002
|
Instance 3 : First repeat imaging visit (2019+)
5,084 participants, 5,084 items
| Maximum | 1747 |
| Decile 9 | 729 |
| Decile 8 | 667 |
| Decile 7 | 628 |
| Decile 6 | 600 |
| Median | 577 |
| Decile 4 | 550 |
| Decile 3 | 530 |
| Decile 2 | 504 |
| Decile 1 | 472 |
| Minimum | 172 |
|
|
- There are 304 distinct values.
- Mean = 592.001
- Std.dev = 108.802
- 30 items above graph maximum of 986
|
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.
