Data
3,776,003 items of data are available, covering 217,452 participants.
Some values have special meanings defined by Data-Coding
17.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 1 to 15.
Units of measurement are deciseconds.
| Maximum | 33240 |
| Decile 9 | 69 |
| Decile 8 | 50 |
| Decile 7 | 44 |
| Decile 6 | 40 |
| Median | 37 |
| Decile 4 | 35 |
| Decile 3 | 33 |
| Decile 2 | 30 |
| Decile 1 | 27 |
| Minimum | 0 |
|
|
- There are 2554 distinct values.
- Mean = 54.0774
- Std.dev = 97.8855
- 180246 items above graph maximum of 111
- 3596 items have value -1 (Next button not pressed)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
166,122 participants, 2,459,310 items
| Maximum | 25713 |
| Decile 9 | 70 |
| Decile 8 | 51 |
| Decile 7 | 45 |
| Decile 6 | 41 |
| Median | 38 |
| Decile 4 | 35 |
| Decile 3 | 33 |
| Decile 2 | 31 |
| Decile 1 | 28 |
| Minimum | 13 |
|
|
- There are 2455 distinct values.
- Mean = 56.1574
- Std.dev = 104.086
- 124103 items above graph maximum of 112
- 2919 items have value -1 (Next button not pressed)
|
Instance 1 : First repeat assessment visit (2012-13)
19,972 participants, 298,250 items
| Maximum | 5032 |
| Decile 9 | 65 |
| Decile 8 | 49 |
| Decile 7 | 44 |
| Decile 6 | 40 |
| Median | 37 |
| Decile 4 | 35 |
| Decile 3 | 33 |
| Decile 2 | 31 |
| Decile 1 | 28 |
| Minimum | 14 |
|
|
- There are 1287 distinct values.
- Mean = 51.841
- Std.dev = 82.8989
- 13919 items above graph maximum of 102
- 126 items have value -1 (Next button not pressed)
|
Instance 2 : Imaging visit (2014+)
62,989 participants, 939,539 items
| Maximum | 33240 |
| Decile 9 | 68 |
| Decile 8 | 49 |
| Decile 7 | 43 |
| Decile 6 | 39 |
| Median | 36 |
| Decile 4 | 34 |
| Decile 3 | 32 |
| Decile 2 | 29 |
| Decile 1 | 27 |
| Minimum | 0 |
|
|
- There are 1551 distinct values.
- Mean = 50.1041
- Std.dev = 87.67
- 40846 items above graph maximum of 109
- 505 items have value -1 (Next button not pressed)
|
Instance 3 : First repeat imaging visit (2019+)
5,292 participants, 78,904 items
| Maximum | 2951 |
| Decile 9 | 62 |
| Decile 8 | 46 |
| Decile 7 | 41 |
| Decile 6 | 38 |
| Median | 35 |
| Decile 4 | 33 |
| Decile 3 | 31 |
| Decile 2 | 29 |
| Decile 1 | 26 |
| Minimum | 14 |
|
|
- There are 622 distinct values.
- Mean = 45.0528
- Std.dev = 54.4569
- 2888 items above graph maximum of 98
- 46 items have value -1 (Next button not pressed)
|
Notes
This is the time taken to press the 'next' key on the touchscreen in each round since the triplet played (right ear). This should not be used as a marker of reaction time as participants were not explicity instructed to complete the test as quickly we possible.
Coding 17 defines 1 special value:
- -1 represents "Next button not pressed"
