Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/ProbabilityAssessmentServiceTest.cs
===================================================================
diff -u -rce94b8228bc7e51779b3754217580f13cb35e475 -r55c178c8718a4ddb95cf2a99afb9fbdb92915b43
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/ProbabilityAssessmentServiceTest.cs	(.../ProbabilityAssessmentServiceTest.cs)	(revision ce94b8228bc7e51779b3754217580f13cb35e475)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/ProbabilityAssessmentServiceTest.cs	(.../ProbabilityAssessmentServiceTest.cs)	(revision 55c178c8718a4ddb95cf2a99afb9fbdb92915b43)
@@ -36,10 +36,10 @@
         [TestCase(20000, 100, 1, 0.00005000000)]
         [TestCase(20000, 24, 2, 0.00000600000)]
         [TestCase(20000, 24, 1, 0.00001200000)]
-        public void RequiredProbability_DifferentInputs_ReturnsExpectedValue(int norm, double contribution, int lengthEffectN, double expectedResult)
+        public void RequiredProbability_DifferentInputs_ReturnsExpectedValue(int returnPeriod, double contribution, int lengthEffectN, double expectedResult)
         {
             // Call
-            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(norm, contribution, lengthEffectN, double.NaN);
+            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(returnPeriod, contribution, lengthEffectN, double.NaN);
 
             // Assert
             Assert.AreEqual(expectedResult, probabilityAssessmentOutput.RequiredProbability, 1e-6);
@@ -54,10 +54,10 @@
         [TestCase(20000, 100, 1, 3.890591886)]
         [TestCase(20000, 24, 2, 4.377587847)]
         [TestCase(20000, 24, 1, 4.2240038)]
-        public void RequiredReliability_DifferentInputs_ReturnsExpectedValue(int norm, double contribution, int lengthEffectN, double expectedResult)
+        public void RequiredReliability_DifferentInputs_ReturnsExpectedValue(int returnPeriod, double contribution, int lengthEffectN, double expectedResult)
         {
             // Call
-            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(norm, contribution, lengthEffectN, double.NaN);
+            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(returnPeriod, contribution, lengthEffectN, double.NaN);
 
             // Assert
             Assert.AreEqual(expectedResult, probabilityAssessmentOutput.RequiredReliability, probabilityAssessmentOutput.RequiredReliability.GetAccuracy());
@@ -96,10 +96,10 @@
         [TestCase(20000, 100, 2, 4.149409984, 1.023124169)]
         [TestCase(20000, 24, 2, 4.107479655, 0.938297482)]
         [TestCase(20000, 24, 2, 4.149409984, 0.947875892)]
-        public void FactorOfSafety_DifferentInputs_ReturnsExpectedValue(int norm, double contribution, int lengthEffectN, double reliability, double expectedResult)
+        public void FactorOfSafety_DifferentInputs_ReturnsExpectedValue(int returnPeriod, double contribution, int lengthEffectN, double reliability, double expectedResult)
         {
             // Call
-            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(norm, contribution, lengthEffectN, reliability);
+            var probabilityAssessmentOutput = ProbabilityAssessmentService.Calculate(returnPeriod, contribution, lengthEffectN, reliability);
 
             // Assert
             Assert.AreEqual(expectedResult, probabilityAssessmentOutput.FactorOfSafety, probabilityAssessmentOutput.FactorOfSafety.GetAccuracy());