Define a validation rule for multi-choice questions
For drop-down questions or questions with checkboxes, you can specify the number of options that users must select, or require users to choose a specific option.
For example, the Select Exactly validation rule is configured for questions used in a minimization design definition or enrollment limit.
You can define more than one validation rule for a drop-down
or checkbox question, if applicable. Repeat these steps to add new
rules as required and select a logical operator from the drop-down
between rules:
- If you select AND, the value must be valid for every validation rule.
- If you select OR, the value must be valid for exactly one validation rule.