diff --git a/pom.xml b/pom.xml
index ac0ba94..db94ebd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.datamelt</groupId>
     <artifactId>evaluator</artifactId>
-    <version>1.5.3-SNAPSHOT</version>
+    <version>1.5.4-SNAPSHOT</version>
 
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
diff --git a/src/main/java/com/datamelt/evaluate/check/EvaluationResult.java b/src/main/java/com/datamelt/evaluate/check/EvaluationResult.java
index a226e5b..489d75c 100644
--- a/src/main/java/com/datamelt/evaluate/check/EvaluationResult.java
+++ b/src/main/java/com/datamelt/evaluate/check/EvaluationResult.java
@@ -1,15 +1,16 @@
 package com.datamelt.evaluate.check;
 
-import java.util.ArrayList;
 import java.util.List;
 
 public class EvaluationResult<T>
 {
-    private final List<GroupResult<T>> groupResults= new ArrayList<>();
+    private final List<GroupResult<T>> groupResults;
+    private boolean passed;
 
-    public void addGroupResult(GroupResult<T> groupResult)
+    public EvaluationResult(List<GroupResult<T>> groupResults)
     {
-        groupResults.add(groupResult);
+        this.groupResults = groupResults;
+        this.evaluate();
     }
 
     public List<GroupResult<T>> getGroupResults()
@@ -18,6 +19,11 @@ public List<GroupResult<T>> getGroupResults()
     }
 
     public boolean passed()
+    {
+        return passed;
+    }
+
+    private void evaluate()
     {
         boolean result = false;
         if(!groupResults.isEmpty())
@@ -28,33 +34,30 @@ public boolean passed()
                 result = combineResults(result, groupResults.get(i));
             }
         }
-        return result;
+        passed = result;
     }
 
-    private boolean combineResults(boolean groupResult1, GroupResult<T> groupResult2)
+    private boolean combineResults(boolean intermediateResult, GroupResult<T> groupResult2)
     {
         switch (groupResult2.getConnectorToPreviousGroup())
         {
             case AND ->
             {
-                return groupResult2.passed() && groupResult1;
+                return groupResult2.passed() && intermediateResult;
             }
             case OR ->
             {
-                return groupResult2.passed() || groupResult1;
+                return groupResult2.passed() || intermediateResult;
             }
             case NOT ->
             {
-                return !(groupResult2.passed() && groupResult1);
+                return !(groupResult2.passed() && intermediateResult);
             }
             case NOR ->
             {
-                return !(groupResult2.passed() || groupResult1);
+                return !(groupResult2.passed() || intermediateResult);
             }
             default -> throw new IllegalStateException("unexpected value: " + groupResult2.getConnectorToPreviousGroup());
         }
     }
-
-
-
 }
diff --git a/src/main/java/com/datamelt/evaluate/check/Logic.java b/src/main/java/com/datamelt/evaluate/check/Logic.java
index e4a4a90..2019a0a 100644
--- a/src/main/java/com/datamelt/evaluate/check/Logic.java
+++ b/src/main/java/com/datamelt/evaluate/check/Logic.java
@@ -29,12 +29,12 @@ public Group<T> getGroup(String name)
 
     public EvaluationResult<T> evaluate(T data)
     {
-        EvaluationResult<T> evaluationResult = new EvaluationResult<>();
-        for(Group<T> group : getGroups())
-        {
-            evaluationResult.addGroupResult(new GroupResult<>(group, data));
-        }
-        return evaluationResult;
+        return new EvaluationResult<>(
+                getGroups()
+                        .stream()
+                        .map(group -> new GroupResult<>(group, data))
+                        .toList()
+        );
     }
 
     public String getGroupConnectionLogic()
diff --git a/src/test/java/com/datamelt/evaluate/check/LogicTest.java b/src/test/java/com/datamelt/evaluate/check/LogicTest.java
index 89b2900..6a98d71 100644
--- a/src/test/java/com/datamelt/evaluate/check/LogicTest.java
+++ b/src/test/java/com/datamelt/evaluate/check/LogicTest.java
@@ -31,7 +31,7 @@ public void testLogicPassedUsingSingleRowObject()
                 .build();
 
         EvaluationResult<Row> evaluationResult = logic.evaluate(testRow);
-        assert(logic.evaluate(testRow).passed());
+        assert(evaluationResult.passed());
     }
 
     @Test