1,084,707 items of data are available, covering 498,800 participants, encoded using Data-Coding 100305
Defined-instances run from 0 to 3, labelled using Instancing 2
Array indices run from 0 to 5.
: Initial assessment visit (2006-2010) at which participants were recruited and consent given
497,729 participants, 901,195 items
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 42,832 items
Instance 2 : Imaging visit (2014+)
64,924 participants, 129,439 items
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 11,241 items
ACE touchscreen question "Which of the following qualifications do you have? (You can select more than one)"
The following checks were performed:
- If code -7 was selected, then no additional choices were allowed.
- If code -3 was selected, then no additional choices were allowed.
If the participant activated the Help button they were shown the message:
|A levels/AS levels and equivalent includes the Higher School Certificate|
O levels/GCSEs and equivalent includes the School Certificate.