Data
3,540,212 items of data are available, covering 494,356 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 11.
Units of measurement are milliseconds.
| Maximum | 121281 |
| Decile 9 | 765 |
| Decile 8 | 671 |
| Decile 7 | 610 |
| Decile 6 | 578 |
| Median | 547 |
| Decile 4 | 516 |
| Decile 3 | 484 |
| Decile 2 | 453 |
| Decile 1 | 422 |
| Minimum | 0 |
|
|
- There are 785 distinct values.
- Mean = 578.951
- Std.dev = 192.009
- 59907 items above graph maximum of 1108
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
493,110 participants, 2,987,364 items
| Maximum | 121281 |
| Decile 9 | 765 |
| Decile 8 | 657 |
| Decile 7 | 609 |
| Decile 6 | 563 |
| Median | 532 |
| Decile 4 | 515 |
| Decile 3 | 484 |
| Decile 2 | 453 |
| Decile 1 | 421 |
| Minimum | 0 |
|
|
- There are 473 distinct values.
- Mean = 574.096
- Std.dev = 194.732
- 49544 items above graph maximum of 1109
|
Instance 1 : First repeat assessment visit (2012-13)
20,265 participants, 122,804 items
| Maximum | 2968 |
| Decile 9 | 749 |
| Decile 8 | 657 |
| Decile 7 | 609 |
| Decile 6 | 563 |
| Median | 532 |
| Decile 4 | 515 |
| Decile 3 | 484 |
| Decile 2 | 453 |
| Decile 1 | 421 |
| Minimum | 15 |
|
|
- There are 267 distinct values.
- Mean = 568.469
- Std.dev = 165.154
- 1830 items above graph maximum of 1077
|
Instance 2 : Imaging visit (2014+)
65,565 participants, 395,738 items
| Maximum | 3010 |
| Decile 9 | 796 |
| Decile 8 | 702 |
| Decile 7 | 655 |
| Decile 6 | 609 |
| Median | 578 |
| Decile 4 | 547 |
| Decile 3 | 530 |
| Decile 2 | 498 |
| Decile 1 | 467 |
| Minimum | 0 |
|
|
- There are 647 distinct values.
- Mean = 616.26
- Std.dev = 175.911
- 6511 items above graph maximum of 1125
|
Instance 3 : First repeat imaging visit (2019+)
5,697 participants, 34,306 items
| Maximum | 2964 |
| Decile 9 | 781 |
| Decile 8 | 702 |
| Decile 7 | 640 |
| Decile 6 | 608 |
| Median | 577 |
| Decile 4 | 546 |
| Decile 3 | 515 |
| Decile 2 | 499 |
| Decile 1 | 453 |
| Minimum | 0 |
|
|
- There are 316 distinct values.
- Mean = 608.889
- Std.dev = 168.616
- 527 items above graph maximum of 1109
|
Notes
This gives the interval between the cards being displayed and the participant pressing the snap-button to indicate a match. Note that the time is recorded regardless of whether the cards shown formed a matching pair.
Field 401 and
Field 402 need to be compared to determine if the cards were the same.
Each pair was displayed for 2 seconds, followed by a 1 second gap. If the button-press occurred during a gap then it was recorded against the previous pair, giving a value in the range 2001-2999ms.
