Setup:I have a two-option multiple choice question (pick the red or green button). I have display logic that shows the payout from clicking red or green in page just below the buttons. In the background is a loop & merge that randomly determines a row for the payout (where Field 1 = red payout & Field 2 = green payout). I want to prevent people from clicking the red option, seeing the payout, then clicking the green option to see its payout to see which is better. But I do need the payout to appear on the same page. Is there a way to prevent people from changing their response to a multiple choice question once they’ve made an initial selection? I assume this needs JS but, unfortunately, I don’t know it!Thanks!

Use this JS:Qualtrics.SurveyEngine.addOnload(function() {var choices = jQuery("#"+this.questionId+" [choiceid]");choices.click(function() { if(this.checked) choices.not(this).prop("disabled",true); });});

Thanks for the fast reply, @TomG! I really appreciate your help here! :)Unfortunately, this didn’t solve the problem. I inserted your JS (screenshot below). However, when I preview the survey, I click one option & am still able to click the other option. Perhaps I’ve done something wrong, though?In case it’s helpful, I’ve included a Word version of the survey here (can’t upload qsf).Thanks again!

Prevent people from changing their response to an MC question

Prevent people from changing their response to an MC question | Experience Community

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