Validating matrix table to avoid duplication of highest scores

Question

I am totally at a loss with this problem. I have a matrix table that contains four 7-point Likert-style questions.My intention is for participants to assign the highest score to only one statement, but they keep rating the same highest scores to more than one statement. For instance, the scores could be [7,7,5,2] or [5,5,5,5]. However, if the scores were [5,5,7,2], it is considered correct because the duplicated scores were not the highest.Please help with some coding to prevent this!!!Marjorie

Shivamvig_sv · Answer

Try this one out…You'll need to adjust the code to match your specific HTML structure and button IDs. Additionally, make sure to include this JavaScript code within a <script> tag in your web page or Qualtrics survey, either in the survey header or using the Qualtrics JavaScript editor.// Get all the Likert scale inputsvar likertInputs = document.querySelectorAll('.matrix-table .InputText');// Add event listeners to the Likert scale inputslikertInputs.forEach(function(input) { input.addEventListener('input', validateScores);});// Function to validate the Likert scale scoresfunction validateScores() { var scores = []; // Get the scores from the Likert scale inputs likertInputs.forEach(function(input) {  var score = parseInt(input.value);  if (!isNaN(score)) {   scores.push(score);  } }); // Check for duplicates of the highest score var maxScore = Math.max(...scores); var countMaxScore = scores.filter(function(score) {  return score === maxScore; }).length; // Disable or enable the submit button based on the validation result var submitButton = document.getElementById('submit-button'); if (countMaxScore > 1) {  submitButton.disabled = true;  alert('Please assign the highest score to only one statement.'); } else {  submitButton.disabled = false; }}

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