> ## Documentation Index
> Fetch the complete documentation index at: https://fillout-005a867b-dependabot-npm-and-yarn-form-data-4-0-6.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# Add a rating scale on your form
> Allow respondents to score how good or bad a product, service, or other attribute is.
## How to add the rating field
Look for the **Rating & Ranking** section on the left hand-panel. Choose between three rating field types, `Star rating`, `Slider`, and `Opinion Scale`.
Click on the question or statement followed by its to customize it in the right-hand panel.
If you decide to use a different type of rating field, you can quickly change it by clicking on under .
## Rating vs. ranking
Although similar, rating and ranking accomplish different goals. **Rating** questions are used to compare different options using a numeric scale. For example, asking product users how effective a vitamin C serum is in fading dark spots. Conversely, [ranking](/ranking) questions are used to determine how strongly or weakly a respondent feels with items on a list. For example, asking respondents to rank their most and least favorite movie genre.
## Related articles
Ask respondents to compare options by ordering them.
Attach full copies of PDFs in your survey or form.