Well if this is your requirement, you could design your survey project using the following if-statement as outlined in the image shared below:
In the survey tab of your xlsform:
In the choices tab of your xlsform:

Data entry screen as seen in Enketo: If option 1 is selected, the system gives a score of 3

Data entry screen as seen in Enketo: If option 3 or option 2 is selected with 1, the system gives a score of 3

Data entry screen as seen in Enketo: If option 3 or option 2 is selected with 1, the system gives a score of 3

Data entry screen as seen in Enketo: If option 3 and option 2 is selected, the system gives a score of 2

Data entry screen as seen in Enketo: If option 3 is selected, the system gives a score of 2

Data entry screen as seen in Enketo: If option 2 is selected, the system gives a score of 1

Reference xlsform:
Composite Index.xlsx (13.1 KB)

