adjust slider range and starting point based on response to a previous question

Hi ​@rubaldua! It is totally doable.

Here’s the script you can drop into Question 2 (the slider question). This assumes that Question 1 stores a numeric value using Embedded Data or as part of a previous question’s response.

Qualtrics.SurveyEngine.addOnload(function() {
  // Get the response from Question 1
  var q1Value = parseFloat("${q://QID1/ChoiceNumericEntryValue}"); // Replace QID1 with actual QID of Question 1

  if (!isNaN(q1Value)) {
    var min = q1Value / 10;
    var max = q1Value;
    var start = q1Value / 2;

    // Access the slider input
    var slider = document.querySelector('input[type="range"]');

    if (slider) {
      slider.min = min;
      slider.max = max;
      slider.value = start;

      // Optional: update the display value manually
      var display = document.querySelector('.track > .handle > .value'); 
      if (display) {
        display.innerText = Math.round(start);
      }
    }
  }
});

• Make sure Question 1 is on a separate page from Question 2 so the value is available at runtime.
• You can get the QID of Question 1 from the browser URL or Qualtrics “Advanced Question Options.”
• This script works for standard Qualtrics sliders — if you’re using custom styling, the selector might need to be adjusted

Let me know if it helps!

-- Rochak