diff --git a/Assets/Scripts/ExperimentController.cs b/Assets/Scripts/ExperimentController.cs
index 2ccd722..863f3fa 100644
--- a/Assets/Scripts/ExperimentController.cs
+++ b/Assets/Scripts/ExperimentController.cs
@@ -87,9 +87,9 @@ public class ExperimentController : MonoBehaviour {
         {
             trialIndex++;
             trialDotIndex = 0;
-            dataSet.SaveDataSet();
+            if(participant.participantId != 9999) dataSet.SaveDataSet();
             dataSet.Samples.Clear();
-            if (trialIndex < participant.trials.Length)
+            if (trialIndex < participant.trials.Length && participant.participantId != 9999)
             {
                 nextDot = FindDot(participant.trials[trialIndex][trialDotIndex]);
                 Show(nextDot);
@@ -103,7 +103,7 @@ public class ExperimentController : MonoBehaviour {
         }
         else
         {
-            dataSet.SaveDataSet();
+            if (participant.participantId != 9999)  dataSet.SaveDataSet();
         }
         stopwatch.Start();