In order to reduce bias, your answer choices must be balanced.
Let’s look at the following question:
How satisfied are you with our self-checkout kiosks?
- Very Satisfied
- Satisfied
- Neutral
What’s wrong with this scale? Respondents are encouraged to provide positive feedback only.
Here’s how the scale should look like:
How satisfied are you with our self-checkout kiosks?
- Very Satisfied
- Somewhat Satisfied
- Neither Satisfied Nor Dissatisfied
- Somewhat Dissatisfied
- Very Dissatisfied
As you can see there’s a balance between the positive and negative answer choices.
Whenever you are writing survey questions, remember to be as objective as possible because it’ll help you get reliable and honest feedback!