Data
102,191 items of data are available, covering 88,768 participants.
Defined-instances run from 2 to 3, labelled using Instancing 
2.
Units of measurement are error-count.
| 
| Maximum | 625 |  | Decile 9 | 5 |  | Decile 8 | 2 |  | Decile 7 | 1 |  | Decile 6 | 1 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 118 distinct values.Mean = 2.11082Std.dev = 6.058854637 items above graph maximum of 10 | 
2 Instances
Instance 2 : Imaging visit (2014+)
82,252 participants, 82,252 items
| 
| Maximum | 625 |  | Decile 9 | 5 |  | Decile 8 | 3 |  | Decile 7 | 1 |  | Decile 6 | 1 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 112 distinct values.Mean = 2.13124Std.dev = 6.162353762 items above graph maximum of 10 | 
Instance 3 : First repeat imaging visit (2019+)
19,939 participants, 19,939 items
| 
| Maximum | 241 |  | Decile 9 | 5 |  | Decile 8 | 2 |  | Decile 7 | 1 |  | Decile 6 | 1 |  | Median | 0 |  | Decile 4 | 0 |  | Decile 3 | 0 |  | Decile 2 | 0 |  | Decile 1 | 0 |  | Minimum | 0 |  |   | 
There are 67 distinct values.Mean = 2.02658Std.dev = 5.61098875 items above graph maximum of 10 | 
Notes
Total errors traversing alphanumeric path (trail #2). A zero value here does not indicate that the participant completed the trail without problems as it is possible they abandoned during the process prior to making any mistakes - see 
Field 6350 to determine whether they actually completed the trail.
1 Related Data-Field
| Field ID | Description | Relationship | 
|---|
| 20248 | Total errors traversing alphanumeric ... | Field 20248 is the online equivalent of Current Field |