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form variable not registered...

I have a strange problem:
When my experiment looks like in the picture below, the variable UP_level (of the form)
does not exist in the output

But If I move the loop to the beginning, it registers fine:

I do need this part to be in the end of the experiment.
Any idea what I'm doing wrong?

(I'm using version 3.2.5 on a Windows 10 computer)

Thank you,


  • Hi Tali,

    I see where this comes from, and I filed an issue for it. Essentially, the response variable is not properly exposed, meaning that the logger doesn't know about it until it has actually been set. So if the form occurs before the first logger then the variable is included, otherwise it's not.

    As a workaround until this is fixed, you can add the variable explicitly to the logger.

    Hope this helps!


    There's much bigger issues in the world, I know. But I first have to take care of the world I know.

  • Hi Sebatiaan

    Following your suggestion, I added the var to the logger. This gave me the var name but not the values
    So I added a logger to the beginning of the trial sequence, and now it works great!

    Thanks again,

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