We recommend including an N/A ("not applicable") option in your rating scale. This lets feedback providers indicate that they don't feel they are able to answer a question fairly.
To add this:
- Open your project
- Click Design on the left-hand side
- Click Edit questionnaire
- Click Edit rating scale in the orange menu on the left (see image below)
- Click Edit scale
- Click Add N/A
- You can optionally choose to give the N/A option a longer name e.g. 'Not observed' or 'I don't know'.
- When done, click to save the changes
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