How do I make option "other" a mandatory field after select_multiple or_other in a multiple response question?

I have a multiple-response question. I want to make sure that when a respondent picks other, it becomes a mandatory field. I am using select_multiple or_other option. I do not want to keep on using the option if selected(${}) true.

Welcome to the community @Mfidelis! Maybe this post discussed previously should show you how to do it. In the meantime would also request you to go through the post thoroughly as I have also outlined the negative aspect of using the same:

Thanks Kal_lam,

This is exactly what am using. However, if I wanted to know how I can make the option of others mandatory such that once they choose other, then they have to specify them.

You could do it as outlined in the post discussed previously:

We also have a support article User-Specified “Other” Responses for Multiple-Choice Questions for this. Maybe you would like to go through it as well too.