Define a validation rule for questions with radio buttons

A question with radio buttons requires only one option as an answer. By adding a validation rule, you can require site users to choose a specific option.

Validation rules for questions with checkboxes and be useful to set specific screening requirements or for transferring subjects to a rollover study.
  1. Go to the Rules sidepanel as described in Access the Rules section.
  2. Select Add Rule and then select Answer Must Be.
    A Validation Rule dialog appears.
    Screen shot of the settings for a Date/Time validation rule.
  3. In the Required Answer field, select the exact answer that a site user must select.
  4. In the Error Message field, enter an error message that should appear for site users when the answer is invalid.

Related Topics

Parent topic: Predefined rules