Hi,
well, your first attempt is correct,
{Q1_Q1B1}
meaning: subquestion code "Q1B1" in question "Q1"
but only as long you don't want to use "array filter"
Why?
Because in Q2 the answer options are different.
Here you'd have a subquestion code like "Q2R1".
If you read the manual about "array filter"
[url]
www.limesurvey.org/manual/Question_type_...ilter_(array_filter)
[/url]
you'd have found
The subquestion codes used in the first question must coincide with the subquestion codes from the second one. Otherwise, the array filter function will not filter the answers to the first question.
In your case they do not.
Why don't you use just numeric codes as I showed in the screenshot?
I will never understand why somebody usues such strange subquestion codes without needs and furthermore doubles it (Q1_Q1B1)
Joffm
And you always can create a sample here
demo.limesurvey.org/admin/