Data
593,936 items of data are available, covering 496,765 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are milliseconds.
| Maximum | 2000 |
| Decile 9 | 710 |
| Decile 8 | 641 |
| Decile 7 | 601 |
| Decile 6 | 570 |
| Median | 543 |
| Decile 4 | 520 |
| Decile 3 | 497 |
| Decile 2 | 473 |
| Decile 1 | 444 |
| Minimum | 63 |
|
|
- There are 1258 distinct values.
- Mean = 565.111
- Std.dev = 117.989
- 5360 items above graph maximum of 976
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
496,533 participants, 496,533 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 = 118.001
- 4867 items above graph maximum of 966
|
Instance 1 : First repeat assessment visit (2012-13)
20,253 participants, 20,253 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 = 557.459
- Std.dev = 110.987
- 156 items above graph maximum of 949
|
Instance 2 : Imaging visit (2014+)
70,551 participants, 70,551 items
| Maximum | 1809 |
| Decile 9 | 744 |
| Decile 8 | 679 |
| Decile 7 | 640 |
| Decile 6 | 609 |
| Median | 585 |
| Decile 4 | 561 |
| Decile 3 | 538 |
| Decile 2 | 511 |
| Decile 1 | 483 |
| Minimum | 150 |
|
|
- There are 866 distinct values.
- Mean = 602.75
- Std.dev = 113.131
- 537 items above graph maximum of 1005
|
Instance 3 : First repeat imaging visit (2019+)
6,599 participants, 6,599 items
| Maximum | 1747 |
| Decile 9 | 737 |
| Decile 8 | 672 |
| Decile 7 | 633 |
| Decile 6 | 605 |
| Median | 581 |
| Decile 4 | 555 |
| Decile 3 | 534 |
| Decile 2 | 511 |
| Decile 1 | 476 |
| Minimum | 172 |
|
|
- There are 436 distinct values.
- Mean = 597.061
- Std.dev = 109.759
- 35 items above graph maximum of 998
|
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.
