formR and Pavlovia

Description of the problem:

I am trying to use formr as a survey instrument from which I want to go to Pavlovia to run my experiment. I’d like to jump back to formR and to differentiate two cases: complete run and incomplete run.

I am using the complete and incomplete URLs of the Online tab in the Experiment Properties, e.g. complete:, incomplete: My problem is that the variable complete is always empty for formR (formR output: MorphSemAbbruch ="{“complete”:[""]}"), stringsAsFactors=F).

I can send a participant code from formr to Pavlovia. That is working.

Any idea what might be going wrong?

Best wishes Jens


ok, I solved the problem myself. It was an error in the formr-sheet. The get-command did not work when there was a showif in the sheet.

Best wishes Jens