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Here a working example (with some issues that I really don't understand, need to do more research),

1. First I put the equation in the question text of the multipunch question. This worked, with the array filter, but the subquestions were not ticke.
2. Then seperated it into an equation question in the first question group and now ALL subquestions were ticked always and the array filter would also show all answer options in the last single punch question (which is corretly wrong).
3. Then I moved the equation question into the second group and now all subquestions are still ticked, but the array filter now wrongly works correctly... lol

So it works, but with some odd behaviour. Maybe someone eles understands why? Maybe a bug in Limesurvey? Because I should be able to "tick" the answers of the multipunch question correctly via equation. But it either shows all ticked or none ticked. Weird.

However, looking at your LSS file, I probably would rather create two questions for the academic background part, one for campus A, another for campus B. It is the easiest and in my opinion cleanest way.

Also, G01Q02 seems to be completely irrelevant for this issue, or am I missing something?

But here an example:

You'll create a mutlipunch question that you will hide later, to be able to use relevance equation for the items. So via expression you "tick" the boxes in this multipunch question based on whether respondents have chosen location A or B.

Then you create a single punch question with exactly the same items and exactly the same answer codes as the subquestion codes in the previous question and set an Array filter on the previous question.

OK, all Single Punch requires a little workaround, because there is no such thing as answer option relevance, like there is subquestion relevance.

So you have a couple of options:

1. Quick and dirty: Use a multipunch question and limit the number of responses to 1. Works like a single punch question this way, can use subquestion relevance. But it still looks like a multipunch question with the checkboxes compared to the radio buttons of single punch questions.

2. use a hidden multipunch question to "collect" the answers from the two single punch questions and use the array filter to show/hide the respective answers in the last single punch question.

Your request gives the impression that the first questions are single punch and the 3rd is multipunch, not an array / matrix. So that's what Joffm gave the answer for.

As Joffm says, if it ain't so, show us what the actual survey looks like (only the 3 relevant questions) by providing a LSS file (not LSQ or LSG). Make a copy of your survey, throw everything out that isn't relevant for the issue and export it as LSS.

That is the problem when you don't explain things in detail.

So remember that multi punch questions don't have answer options but subquestions?

This is why you have to call the "question text" (which in this case is actually the subquestion text.

{Q1_A.question}

By the way, with {Q1} does pipe the answer code, no the answer text. That would be {Q1.shown} for a single punch question.

multi punch questions do not have answer options, but subquestions.

So for each answer option / subquestion you need to check if it has been checked or not, e.g. via Q1_A=="Y".

Depending on your construct (unfortunately your explanation isn't very clear) you could also use the array filter.

Yes, "hidden equation questions" are just that: equation questions, that are hidden. You can use "always hide this question" from the GUI in this case, it will still calculate everything just fine.

Howe to check selected tick boxes. Two things help you there: The logic file will show you how to address the question and in this case subquestion.

usually it is something like that:
If you use {Q3_SQ003} in a text display question you can easily see the output. Activating the survey, fill it and then have a look at the response table also gives you a good idea how things are stored in the database.

In the case of multipunch questions it is a "Y" if selected and empty if not selected.


So to check if a specific subquestion in a multipunch question has been checked you can use something like:
So you check if subquestion 3 of question 3 is "Y" and go from there.

Multipunch questions are strange when it comes to assessment values. They simply apply 1 point per ticked checkbox, afaik.

You'll need to calculate your score for 5his question in a hidden equation question I guess. 

"multipunch questions" --> you can select more than one answer item. and this is rather a term used in the research industry, than a specific Limesurvey term. Actually it is NOT a Limesurvey term, as these type of questions are never called this in Limesurvey. But "multipunch" is clearer than "multiple choice", which is a little ambigious and is often used for "multi punch" questions, or for single choice questions where you can choose one among multiple answers.