This article applies to:
Non-visible SlideChoice Items that have IncludeACC set to Yes can lead to inaccurate data.
In the image below, the SlideChoice is set to show 3 Rows. At one time, a fourth Row did exist but is now grayed-out.
Accuracy Mode is set to "All". Since the grayed-out row IncludeACC is set to "Yes", it is required to be selected to be marked as an ACC or 1. However, because it is non-visible, it cannot be selected.
Set the grayed-out Row(s) IncludeACC to "No".
Delete the non-visible Rows.