Data
99,999 items of data are available, covering 91,199 participants.
Some values have special meanings defined by Data-Coding
100696.
Defined-instances run from 0 to 3, labelled using Instancing
2.
| Maximum | 12 |
| Decile 9 | 8 |
| Decile 8 | 8 |
| Decile 7 | 7 |
| Decile 6 | 7 |
| Median | 7 |
| Decile 4 | 6 |
| Decile 3 | 6 |
| Decile 2 | 6 |
| Decile 1 | 5 |
| Minimum | 2 |
|
|
- There are 11 distinct values.
- Mean = 6.71005
- Std.dev = 1.31564
- 38 items above graph maximum of 11
- 2151 items have value -1 (Abandoned)
|
3 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
51,757 participants, 51,757 items
| Maximum | 12 |
| Decile 9 | 8 |
| Decile 8 | 8 |
| Decile 7 | 7 |
| Decile 6 | 7 |
| Median | 7 |
| Decile 4 | 6 |
| Decile 3 | 6 |
| Decile 2 | 6 |
| Decile 1 | 5 |
| Minimum | 2 |
|
|
- There are 11 distinct values.
- Mean = 6.68541
- Std.dev = 1.34493
- 22 items above graph maximum of 11
- 1441 items have value -1 (Abandoned)
|
Instance 2 : Imaging visit (2014+)
43,149 participants, 43,149 items
| Maximum | 12 |
| Decile 9 | 8 |
| Decile 8 | 8 |
| Decile 7 | 7 |
| Decile 6 | 7 |
| Median | 7 |
| Decile 4 | 6 |
| Decile 3 | 6 |
| Decile 2 | 6 |
| Decile 1 | 5 |
| Minimum | 2 |
|
|
- There are 11 distinct values.
- Mean = 6.71969
- Std.dev = 1.28629
- 16 items above graph maximum of 11
- 575 items have value -1 (Abandoned)
|
Instance 3 : First repeat imaging visit (2019+)
5,093 participants, 5,093 items
| Maximum | 11 |
| Decile 9 | 8 |
| Decile 8 | 8 |
| Decile 7 | 8 |
| Decile 6 | 7 |
| Median | 7 |
| Decile 4 | 7 |
| Decile 3 | 6 |
| Decile 2 | 6 |
| Decile 1 | 5 |
| Minimum | 2 |
|
|
- There are 10 distinct values.
- Mean = 6.87737
- Std.dev = 1.2494
- 135 items have value -1 (Abandoned)
|
Notes
Longest number correctly recalled during the numeric memory test. A value of -1 is recorded if the participant chose to abandon the test before completing the first round.
Coding 100696 defines 1 special value:
- -1 represents "Abandoned"
