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I have a rather difficult issue to explain.

Let's take a survey with two open-ended questions.  Both questions were coded using the same coding system: Code(A) and Code(b). I would like to analyse the differences in coding between the two questions for the same person: what the person expresses in question B according to what he/she expressed in question A.

In other words, I am trying to create a matrix coding where only the coding concerning the same person appear: it is quite common with 1,2, ...5 cases, but with more than 100 cases it becomes tricky.

Formally, if ID is the person's identifier, I want to creatre a matrix where:  Code(A) x Code(B) for any ID(A) = ID(B).

I thought of creating relationships manually between all cases to link ID(A) and ID(B) , but it's long (no way to creat relationship automatically from a table?) and finally I'm not sure what to do with all these relationships.

I thought of creating as many cases as questions-ID. Then in the classification table, I indicate the ID, which allows to retrieve the couples. But after doing that, I am stucked.

The workaround I found is to create this table of transformations on a statistical software  to detect the most frequent movements from A to B. And then manually create relationships in Nvivo on these most frequent movements. But by doing this, I lose the interactive capabilities of nvivo. And if I get a set of relations between codes ("when there's that in A, there's that in B") but I still don't know how to display only the content where ID(A) = ID(B). 

Any idea, suggestions? (I'm not sure to be enough clear, both my english and my ideas are fuzzy )

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I am looking in filter of crosstab Query. There are a lot of options but can't find any option to filter when "in the same Set" or "in the same Document".


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Hi Alex,


If you have cases in your project and each case contains all data for all questions for this particular case, you can try to run a Matrix Coding query with Cases as rows and the Codes as columns.

This will give you a separate row for each Case and the Code, you will be able to see for each case, how the data is coded at each Code (A,B).



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