How to prevent a choice from being selected more than once across different questions

[RyanB]

Hi There,

I am using these forms as an attendance register for an e-learning program being run in a rural part of South Africa. Quick description on how I have set out the form:
Every student appears under the choice tab, assigned to their specific class.
The teacher, when filling out the form selects the class he/she wishes to record the attendance for, and the learners in that class then appear.

Currently the teacher would then select learners who are present and leave the absent learners unselected. I would like to change this to the following:

1. Teacher selects class:
2. Learners within that class appear and the teacher is asked to select the learners who are present
3. The following question would then contain the remaining learners and the teacher is asked to select those who are absent

How do I prevent a teacher from mistakenly selecting a learner twice (once as present, once as absent)?

[Kal_Lam]

Hi @RyanB,

Welcome to the community! Do you mean you wish to design a survey form with the similar principle discussed previously:

Those options appear in the next question which have not been selected in the previous question

Hi @sudhirCOM, Welcome to the community! Backing up with what @wroos has advised you, you could do the same following the instructions outlined in the image below: In the survey tab of your xlsform: [Image 1] In the choices tab of your xlsform: [Image 2] Data entry screen as seen in Enketo: [Image 3] Reference xlsform: Cascading Select (Multiple Questions).xlsx (21.6 KB) Have a great day!

Have a great day!