# Choice\_filter based on responses to previous select\_one (yes/no) questions

**URL:** <https://forum.getodk.org/t/choice-filter-based-on-responses-to-previous-select-one-yes-no-questions/41750>\
**Category:** Support\
**Created:** [June 1, 2023, 1:47pm UTC](https://forum.getodk.org/t/choice-filter-based-on-responses-to-previous-select-one-yes-no-questions/41750 "2023-06-01T13:47:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![mathieubossaert](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/mathieubossaert/32/6131_2.png) [@mathieubossaert](https://forum.getodk.org/u/mathieubossaert)\
**Post date:** [June 1, 2023, 4:11pm UTC](https://forum.getodk.org/t/choice-filter-based-on-responses-to-previous-select-one-yes-no-questions/41750/2 "2023-06-01T16:11:33Z")

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Welcome on the ODK Community forum @kateanelson !  
We're glad you're here. When you get a chance please take the time to [introduce yourself in the dedicated topic](https://forum.getodk.org/t/introduce-yourself-here/6671) 🙂

You can achieve what you want to do with a appropriate choice\_filter clause.  
Here is an example :

[Choice\_filter\_based\_on\_select\_one\_questions.xlsx](https://forum.getodk.org/uploads/short-url/m2CqPooqubpjdJAKSUEecla0PWP.xlsx) (9,3 Ko)

The calculate (line 9) concatenates the products names selected in previous select\_one questions.

In the choice\_filter of the select\_multiple question you just need to check whether the "used\_products" variable contains the current option name.

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_[View the full topic](https://forum.getodk.org/t/choice-filter-based-on-responses-to-previous-select-one-yes-no-questions/41750)._