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Theme: If question A is answered yes, quesiton B will has 50% probablity of being shown
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Dear all, 

I was wondering if I can set a condition to a question with a certain probability?  

For example,  if certain options in question A are selected, I  want question B to be 50% possibility to be shown. 

Is this possible in Limesurvey? If so, would you please provide me with some ideas? Thanks in advance!

Best regards,
LSQ

if certain options in question A are selected

Please, which options, which type of question?

So a rough answer:

1. Create a question of type equation (eq1) that gives a result of 1, if the "certain options" are selected or 2, if not.
No example possible without more details.

2. Create a question of type equation (eq2) where you generate a random number between 1 and 2, if the first equation is 1 and a fixed value of 2, if the first equation is 2.
Like
{if(eq1==1,if(is_empty(eq2),rand(1,2),eq2),2)}
So, only if eq1==1 a random number is created otherwise the value of eq2 is 2.

And your question B gets the relevance equation: eq2==1

Joffm

If I take your topic into account "If question A is answered yes"
then it is more simple; you have only one equation

eq2
{if(QA=="Y",if(is_empty(eq2),rand(1,2),eq2),2)}

Thank you very much Joffm, I got the solution!