Radio and Checkbox groups

The item in the Oracle InForm study:

This item is composed of a radio group containing three options:

• A checkbox group with caption Yes that contains three options:
  • A simple control Parent.
  • A simple control Sibling.
  • A text box with caption Other.
• A simple control: No.
• A simple control: Unknown.

Criteria to determine whether an item is complete:

• If nothing is selected, then the item is incomplete.
• If No is selected, then the item is complete, because No does not have any children of its own (it is a simple control).
• If Yes is selected, but no checkbox options are selected, the item is not complete because at least one checkbox must be selected.
• If Yes is selected and Parent or Sibling is selected, then the item is complete, because Parent and Sibling don’t have any children of their own.
• If Yes is selected and Other is selected, but the text box is not filled in, then the item is incomplete.