Data
4,528,491 items of data are available, covering 240,060 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 | 32 |
| Decile 2 | 30 |
| Decile 1 | 27 |
| Minimum | 0 |
|
|
- There are 2599 distinct values.
- Mean = 53.122
- Std.dev = 94.1463
- 210967 items above graph maximum of 111
- 3940 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
165,998 participants, 2,457,471 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 = 56.1602
- Std.dev = 104.089
- 124024 items above graph maximum of 112
- 2916 items have value -1 (Next button not pressed)
|
Instance 1 : First repeat assessment visit (2012-13)
19,952 participants, 297,950 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 1286 distinct values.
- Mean = 51.8433
- Std.dev = 82.9158
- 13906 items above graph maximum of 102
- 126 items have value -1 (Next button not pressed)
|
Instance 2 : Imaging visit (2014+)
98,265 participants, 1,466,211 items
| Maximum | 33240 |
| Decile 9 | 68 |
| Decile 8 | 49 |
| Decile 7 | 42 |
| Decile 6 | 39 |
| Median | 36 |
| Decile 4 | 33 |
| Decile 3 | 31 |
| Decile 2 | 29 |
| Decile 1 | 26 |
| Minimum | 0 |
|
|
- There are 1703 distinct values.
- Mean = 49.566
- Std.dev = 82.519
- 63054 items above graph maximum of 110
- 740 items have value -1 (Next button not pressed)
|
Instance 3 : First repeat imaging visit (2019+)
20,574 participants, 306,859 items
| Maximum | 7193 |
| Decile 9 | 65 |
| Decile 8 | 47 |
| Decile 7 | 41 |
| Decile 6 | 37 |
| Median | 35 |
| Decile 4 | 32 |
| Decile 3 | 30 |
| Decile 2 | 28 |
| Decile 1 | 26 |
| Minimum | 12 |
|
|
- There are 1109 distinct values.
- Mean = 47.0392
- Std.dev = 68.279
- 12714 items above graph maximum of 104
- 158 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"
