diff --git a/js/h5p-x-api-event.js b/js/h5p-x-api-event.js
index 98b287a..1653b0c 100644
--- a/js/h5p-x-api-event.js
+++ b/js/h5p-x-api-event.js
@@ -18,18 +18,40 @@ H5P.XAPIEvent.prototype.constructor = H5P.XAPIEvent;
  *
  * @param {number} score
  * @param {number} maxScore
+ * @param {object} instance
+ * @param {boolean} completion
+ * @param {boolean} success
  */
-H5P.XAPIEvent.prototype.setScoredResult = function (score, maxScore, instance) {
-  this.data.statement.result = {
-    'score': {
-      'min': 0,
-      'max': maxScore,
-      'raw': score
+H5P.XAPIEvent.prototype.setScoredResult = function (score, maxScore, instance, completion, success) {
+  this.data.statement.result = {};
+  
+  if (typeof score !== 'undefined') {
+    if (typeof maxScore === 'undefined') {
+      this.data.statement.result.score = {'raw': score};
+    }
+    else {
+      this.data.statement.result.score = {
+        'min': 0,
+        'max': maxScore,
+        'raw': score
+      };
+      if (maxScore > 0) {
+        this.data.statement.result.score.scaled = Math.round(score / maxScore * 10000) / 10000;
+      }
     }
-  };
-  if (maxScore > 0) {
-    this.data.statement.result.score.scaled = Math.round(score / maxScore * 10000) / 10000;
   }
+  
+  if (typeof completion === 'undefined') {
+    this.data.statement.result.completion = true;
+  }
+  else {
+    this.data.statement.result.completion = completion;
+  }
+  
+  if (typeof success !== 'undefined') {
+    this.data.statement.result.success = success;
+  }
+  
   if (instance && instance.activityStartTime) {
     var duration = Math.round((Date.now() - instance.activityStartTime ) / 10) / 100;
     // xAPI spec allows a precision of 0.01 seconds