Cascade select with selected() not working


I want to use cascading select function with selected(${xx},'xx'). I created a survey
Trial_errors.xlsx (12.9 KB) and checked it with However, the cascade select is not functioning, even after reading Adding Cascading Select Questions — KoboToolbox documentation. Could anyone enlighten me what I am doing wrong?


In multiple choices names, blanks are invalid. It is also recommended not to use blanks for select_one choices. See

You can find a lot of examples with the search function of the forum, e.g. How to create a multi layer cascading select question? - #19 by Kal_Lam.

Hint: When you reference select_one, you can just reference directly as ${select_oneVariable}. selected(…) is only needed for select_multiple.

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