Data
578,857 items of data are available, covering 496,762 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 | 567 |
| Median | 543 |
| Decile 4 | 519 |
| Decile 3 | 496 |
| Decile 2 | 473 |
| Decile 1 | 442 |
| Minimum | 63 |
|
|
- There are 1257 distinct values.
- Mean = 563.838
- Std.dev = 117.803
- 5370 items above graph maximum of 972
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
496,565 participants, 496,565 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 = 559.649
- Std.dev = 118.001
- 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+)
57,040 participants, 57,040 items
| Maximum | 1809 |
| Decile 9 | 741 |
| Decile 8 | 675 |
| Decile 7 | 636 |
| Decile 6 | 608 |
| Median | 581 |
| Decile 4 | 558 |
| Decile 3 | 534 |
| Decile 2 | 511 |
| Decile 1 | 480 |
| Minimum | 150 |
|
|
- There are 773 distinct values.
- Mean = 600.116
- Std.dev = 112.469
- 413 items above graph maximum of 1002
|
Instance 3 : First repeat imaging visit (2019+)
4,998 participants, 4,998 items
| Maximum | 1747 |
| Decile 9 | 729.5 |
| Decile 8 | 667 |
| Decile 7 | 628 |
| Decile 6 | 599 |
| Median | 574 |
| Decile 4 | 550 |
| Decile 3 | 530 |
| Decile 2 | 503 |
| Decile 1 | 472 |
| Minimum | 172 |
|
|
- There are 276 distinct values.
- Mean = 591.827
- Std.dev = 109.015
- 28 items above graph maximum of 987
|
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.
