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Is there a way to hide next button until slider value is equal to loop&merge field number?

michalkohuttn Community Member Qubie ✭


I would like to use loop and merge function in block with just one slider. The participant has to select number specified in loop and merge field "Select the number ${lm://Field/1} ". In these fields I have random number generator (${rand://int/1:100}). Is there a way, to validate, that participant selected the presented number? If yes, he/she can continue to next loop, if not, he/she can't continue or there is no next button. I was searching for answer, but I can't find solution. Thank you very much.

Best Answer

  • ahmedA
    ahmedA IndiaCommunity Member, XMPN Member Wizard ✭✭✭✭✭
    Accepted Answer

    This was quite an interesting question. Add this to your JS:

    Qualtrics.SurveyEngine.addOnReady(function () {
        let quest = this,
            ip = quest.questionContainer.querySelector(".ResultsInput"),
            val = "${lm://Field/1}",
            nb = document.querySelector("#NextButton");
        ip.onchange = function () {
            if (ip.value == val);
            else nb.hide();

    However, if this is an attention test, I think its a bit too difficult. Demo