As you enter observations in a single item several statistics are updated automatically once the focus leaves the cell you are editing.
The last 3 columns in the observations table are read-only and they are calculated by DET itself. They are coloured in grey to distinguish them from user-editable fields.
Autocalculated Item values
For each observation the following values are calculated:
On the top right of the screen the DET also displays item level statisticts:
Item level statistics
These are :
See also: