only accept first MCQ answer (without moving page)

if it’s first choice add the below code onLoad

jQuery(‘input[type=”checkbox”]’).eq(0).prop(‘checked’,true)

Hi Rahul, 

Thanks for taking the time to reply to my question, however this doesn’t seem to work. The code is accepted but when I run the survey, I am able to change the selection of the MCQ. 

Mark

Hey @markw,
Please try the below code.
 

Qualtrics.SurveyEngine.addOnload(function() {
    var questionId = 'QID'; // Replace 'QID' with the actual question ID
    var selected = false;

    // Add a change event listener to the question's inputs
    jQuery('#'+questionId+' input').on('change', function() {
        if (!selected) {
            selected = true;
            jQuery('#'+questionId+' input:not(:checked)').prop('disabled', true);
        }
    });
});