I want to create an incentive compatible study so that participants can spin a wheel to get a free reward, but I can't seem to find a way to record whether they got the free reward or not.
I inserted the wheel from a webpage, using the following code in the html view.
Then I tried to record the result using the embedded data code in javascript so that I can download the .csv from Qualtrics later on and send the free reward to those that are applicable.
Qualtrics.SurveyEngine.addOnUnload(function()
{Qualtrics.SurveyEngine.setEmbeddedDate("wheel",data[picked])
});
But this code doesn't seem to work. Could anyone help me with this problem?
Below is the code for the webpage with the spinner wheel.
