I have a List (radio) question.

q1. Please pick one as your first choice:
{sq001}red
{sq002}blue
{sq003}green
{sq004}undecided

'green' selected.

What I want to do is ask a follow up question - which would omit the selected answer from the previous question:

Q2. Please pick your second choice:
{sq001}red
{sq002}blue
{sq004}undecided

I can't seem to figure out how to do this. I have looked through the forums, attempted to use the logic exclusion Q1_sq001 or Q1{sq001}... neither seems to work.

any help deeply appreciated.

Hi,

1. you should not code your answer options in a single punch question "sq001", "sq002".
This means "subquestions" and should be used in multiple questions, arrays, etc.

Now your question.
As you know you cannot use the array filters.

So you may insert a hidden multiple question (M1) and a hidden equation between these two questions.
All three questions have exactly the same answer resp. subquestion codes.
In the equation you set the selectd code of Q1 by
{M1_1=if(Q1==1,"Y","")}
{M1_2=if(Q1==2,"Y","")}
{M1_3=if(Q1=,"Y","")}

with simple numeric codes
1: red
2: blue
3: green
4: undecided

Now you use this multiple question M1 as array exclusion filter for Q2.

Of course you have to decide what happens if the respondent answers undecided in Q1



Joffm

Worked like a charm. Took me a few tries, but the example you included was key to my success.

Thank you!