diff --git a/.idea/misc.xml b/.idea/misc.xml
index 53d546c..8015daa 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17_PREVIEW" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index cc2c688..283e16d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -11,7 +11,7 @@ android {
         minSdk 28
         targetSdk 33
         versionCode 1
-        versionName "1.0.0"
+        versionName "1.0.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/ScreeningDatabase.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/ScreeningDatabase.java
index b13fc60..6dcbeef 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/ScreeningDatabase.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/ScreeningDatabase.java
@@ -13,7 +13,7 @@
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 
 /**
- * Configuration for the application's Room database
+ * Configuration for the application's Room database.
  *
  * @author Peetu Saarinen
  */
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/dao/TestDao.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/dao/TestDao.java
index fd3ffd2..d5277c6 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/dao/TestDao.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/dao/TestDao.java
@@ -22,7 +22,7 @@ public interface TestDao {
      * Insert the provided entity to the table.
      * In case of a conflict, the row in the database is replaced.
      *
-     * @param entity the {@link Test} entity to be inserted
+     * @param entity The {@link Test} entity to be inserted
      * @return A <code>long</code> that holds the id of the inserted entity
      */
     @Insert(onConflict = OnConflictStrategy.REPLACE)
@@ -40,7 +40,7 @@ public interface TestDao {
     /**
      * Find the entity that matches the provided id.
      *
-     * @param id the id of the desired entity
+     * @param id The id of the desired entity
      * @return A {@link Test} entity or <code>null</code> if nothing was found
      */
     @Query("SELECT * FROM tests WHERE id = :id")
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/model/Test.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/model/Test.java
index 425b9a7..a62c361 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/model/Test.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/data/model/Test.java
@@ -9,7 +9,7 @@
 import java.time.OffsetDateTime;
 
 /**
- * Entity that represents a single take of the test
+ * Entity that represents a single take of the test.
  *
  * @author Peetu Saarinen
  */
@@ -117,18 +117,29 @@ public void addAvailablePoints(int value) {
         this.availablePoints += value;
     }
 
+    /**
+     * Calculates the possibility of dyslexia from the user's score and age.
+     * <p>
+     * This method is very crude at the moment and simply test if the score is above certain percentages.
+     * <p>
+     * Ages 9 and bellow the required percentage of correct answers at minimum is 75.
+     * Ages 12 and bellow the required percentage of correct answers at minimum is 85.
+     * Ages 12 and larger the required percentage of correct answers at minimum is 95.
+     *
+     * @return <code>true</code> if dyslexia is a possibility, otherwise <code>false</code>
+     */
     public boolean isDyslexiaPossible() {
         double score = studentPoints / (double) availablePoints;
 
         if (studentAge <= 9) {
             return score < 0.75;
-        } else if (studentAge <= 12) {
+        }
+
+        if (studentAge <= 12) {
             return score < 0.85;
-        } else if (studentAge <= 14) {
-            return score < 0.95;
         }
 
-        return false;
+        return score < 0.95;
     }
 
     @NonNull
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryActivity.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryActivity.java
index eaf773e..9091d7a 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryActivity.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryActivity.java
@@ -3,7 +3,6 @@
 import android.os.Bundle;
 
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.recyclerview.widget.DividerItemDecoration;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -11,7 +10,7 @@
 
 import com.google.android.material.snackbar.Snackbar;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 
 /**
@@ -19,7 +18,7 @@
  *
  * @author Peetu Saarinen
  */
-public class HistoryActivity extends AppCompatActivity {
+public class HistoryActivity extends BaseActivity {
     private RecyclerView recyclerViewHistory;
 
     private HistoryViewModel viewModel;
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryAdapter.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryAdapter.java
index cb1cd40..6eabc63 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryAdapter.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryAdapter.java
@@ -16,7 +16,7 @@
 import java.time.format.FormatStyle;
 import java.util.List;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 
 /**
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryViewModel.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryViewModel.java
index 30bf44f..0bfcd37 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryViewModel.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/history/HistoryViewModel.java
@@ -11,7 +11,7 @@
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 
 /**
- * ViewModel for the {@link HistoryActivity}.
+ * {@link AndroidViewModel} for the {@link HistoryActivity}.
  *
  * @author Peetu Saarinen
  */
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsActivity.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsActivity.java
index b3d81c6..2776b7b 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsActivity.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsActivity.java
@@ -5,7 +5,7 @@
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 
 /**
  * Container activity for the {@link SettingsFragment}.
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsFragment.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsFragment.java
index e4e05ac..7a92fe0 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsFragment.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/settings/SettingsFragment.java
@@ -11,8 +11,7 @@
 import java.util.Locale;
 import java.util.Optional;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
-import fi.metropolia.capslock.dyslexiascreener.SharedConstants;
+import fi.metropolia.capslock.dyslexiascreener.*;
 
 /**
  * Fragment that displays application's settings and saves them automatically.
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/ExerciseFragment.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/ExerciseFragment.java
index 943fe15..afebc17 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/ExerciseFragment.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/ExerciseFragment.java
@@ -7,7 +7,7 @@
 import androidx.lifecycle.ViewModelProvider;
 
 /**
- * Fragment that provides shared functionality between individual tests.
+ * {@link Fragment} that provides shared functionality between individual exercises.
  *
  * @author Peetu Saarinen
  */
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestActivity.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestActivity.java
index c7758b1..bf79a22 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestActivity.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestActivity.java
@@ -5,9 +5,7 @@
 
 import androidx.lifecycle.ViewModelProvider;
 
-import fi.metropolia.capslock.dyslexiascreener.BaseActivity;
-import fi.metropolia.capslock.dyslexiascreener.R;
-import fi.metropolia.capslock.dyslexiascreener.SharedConstants;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 
 /**
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestEndActivity.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestEndActivity.java
index 5f78232..833f374 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestEndActivity.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestEndActivity.java
@@ -7,10 +7,7 @@
 
 import androidx.appcompat.app.ActionBar;
 
-import fi.metropolia.capslock.dyslexiascreener.BaseActivity;
-import fi.metropolia.capslock.dyslexiascreener.MainActivity;
-import fi.metropolia.capslock.dyslexiascreener.R;
-import fi.metropolia.capslock.dyslexiascreener.SharedConstants;
+import fi.metropolia.capslock.dyslexiascreener.*;
 
 /**
  * Activity for thanking the user after a test and sending them back to the start.
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestViewModel.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestViewModel.java
index b5a40d2..bdead25 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestViewModel.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/TestViewModel.java
@@ -10,7 +10,7 @@
 import java.util.ArrayDeque;
 import java.util.List;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.data.ScreeningDatabase;
 import fi.metropolia.capslock.dyslexiascreener.data.model.Test;
 import fi.metropolia.capslock.dyslexiascreener.test.recognition.RecognizableWord;
@@ -19,7 +19,7 @@
 import fi.metropolia.capslock.dyslexiascreener.test.selection.SelectionFragment;
 
 /**
- * ViewModel for the {@link TestActivity}.
+ * {@link AndroidViewModel} for the {@link TestActivity} and {@link ExerciseFragment}s.
  *
  * @author Peetu Saarinen
  */
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/RecognizableWord.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/RecognizableWord.java
index e5a7a58..fee122b 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/RecognizableWord.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/RecognizableWord.java
@@ -4,6 +4,8 @@
 import androidx.annotation.StringRes;
 
 /**
+ * Class for holding an image resource and the associated string resource.
+ *
  * @author Joel Tikkanen
  */
 public class RecognizableWord {
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/TextRecognitionFragment.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/TextRecognitionFragment.java
index ac56358..fed7680 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/TextRecognitionFragment.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/recognition/TextRecognitionFragment.java
@@ -13,11 +13,11 @@
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import com.google.gson.Gson;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.test.ExerciseFragment;
 
 /**
- * Fragment where the user has type the obscured word they see in the image.
+ * {@link ExerciseFragment} where the user has type the obscured word they see in the image.
  *
  * @author Joel Tikkanen
  */
@@ -89,7 +89,8 @@ public int getAvailablePoints() {
 
     @Override
     public int getScoredPoints() {
-        if (editText.getText().toString().equals(getResources().getString(item.getStringResId())))
+        String expected = getResources().getString(item.getStringResId());
+        if (editText.getText().toString().equalsIgnoreCase(expected))
             return 1;
         return 0;
     }
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLetter.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLetter.java
index 20c434c..0183b52 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLetter.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLetter.java
@@ -2,6 +2,11 @@
 
 import androidx.annotation.DrawableRes;
 
+/**
+ * Class for holding an image resource of a letter and whether that image is reversed.
+ *
+ * @author Joonas Jouttijärvi
+ */
 public class ReverseLetter {
     @DrawableRes
     private final int resId;
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersAdapter.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersAdapter.java
index 46371f4..b9dfc02 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersAdapter.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersAdapter.java
@@ -12,7 +12,7 @@
 
 import java.util.List;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.test.reverse.selection.ReverseLetterItemDetails;
 
 /**
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersFragment.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersFragment.java
index 9408c1a..4f6a9a7 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersFragment.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/ReverseLettersFragment.java
@@ -22,14 +22,14 @@
 import java.util.List;
 import java.util.stream.StreamSupport;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.test.ExerciseFragment;
 import fi.metropolia.capslock.dyslexiascreener.test.reverse.selection.ReverseLetterItemKeyProvider;
 import fi.metropolia.capslock.dyslexiascreener.test.reverse.selection.ReverseLetterItemLookup;
 import fi.metropolia.capslock.dyslexiascreener.utils.RandomUtil;
 
 /**
- * Fragment where the user has to select images in the grid where the letter is reversed.
+ * {@link ExerciseFragment} where the user has to select images in the grid where the letter is reversed.
  *
  * @author Joonas Jouttijärvi
  */
@@ -138,7 +138,7 @@ public int getScoredPoints() {
             .mapToObj(x -> items.get(x))
             .filter(ReverseLetter::isReversed)
             .count();
-        
+
         return correctSelections - incorrectSelections;
     }
 }
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemDetails.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemDetails.java
index 9bd56de..8367bd8 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemDetails.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemDetails.java
@@ -6,7 +6,11 @@
 import androidx.annotation.Nullable;
 import androidx.recyclerview.selection.ItemDetailsLookup;
 
+import fi.metropolia.capslock.dyslexiascreener.test.reverse.ReverseLettersFragment;
+
 /**
+ * {@link ItemDetailsLookup.ItemDetails} for the {@link ReverseLettersFragment}'s selection functionality.
+ *
  * @author Peetu Saarinen
  */
 public class ReverseLetterItemDetails extends ItemDetailsLookup.ItemDetails<Long> {
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemKeyProvider.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemKeyProvider.java
index cebc092..b2e8e11 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemKeyProvider.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemKeyProvider.java
@@ -5,6 +5,13 @@
 import androidx.recyclerview.selection.ItemKeyProvider;
 import androidx.recyclerview.widget.RecyclerView;
 
+import fi.metropolia.capslock.dyslexiascreener.test.reverse.ReverseLettersFragment;
+
+/**
+ * {@link ItemKeyProvider} for the {@link ReverseLettersFragment}'s selection functionality.
+ *
+ * @author Peetu Saarinen
+ */
 public class ReverseLetterItemKeyProvider extends ItemKeyProvider<Long> {
     private final RecyclerView recyclerView;
 
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemLookup.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemLookup.java
index aa6ce0b..16e0e6c 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemLookup.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/reverse/selection/ReverseLetterItemLookup.java
@@ -9,7 +9,13 @@
 import androidx.recyclerview.widget.RecyclerView;
 
 import fi.metropolia.capslock.dyslexiascreener.test.reverse.ReverseLettersAdapter;
+import fi.metropolia.capslock.dyslexiascreener.test.reverse.ReverseLettersFragment;
 
+/**
+ * {@link ItemDetailsLookup} for the {@link ReverseLettersFragment}'s selection functionality.
+ *
+ * @author Peetu Saarinen
+ */
 public class ReverseLetterItemLookup extends ItemDetailsLookup<Long> {
     private final RecyclerView recyclerView;
 
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionAdapter.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionAdapter.java
index 14de070..9ad2976 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionAdapter.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionAdapter.java
@@ -12,7 +12,7 @@
 
 import java.util.List;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.test.selection.selection.SelectionItemDetails;
 
 /**
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionFragment.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionFragment.java
index a4cf1eb..469cd9f 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionFragment.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/SelectionFragment.java
@@ -20,14 +20,14 @@
 import java.util.List;
 import java.util.stream.StreamSupport;
 
-import fi.metropolia.capslock.dyslexiascreener.R;
+import fi.metropolia.capslock.dyslexiascreener.*;
 import fi.metropolia.capslock.dyslexiascreener.test.ExerciseFragment;
 import fi.metropolia.capslock.dyslexiascreener.test.selection.selection.SelectionItemDetailsLookup;
 import fi.metropolia.capslock.dyslexiascreener.test.selection.selection.SelectionItemKeyProvider;
 import fi.metropolia.capslock.dyslexiascreener.utils.RandomUtil;
 
 /**
- * Fragment where the user has to select the correct items from a grid.
+ * {@link ExerciseFragment} where the user has to select the correct items from a grid.
  *
  * @author Joel Tikkanen
  */
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetails.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetails.java
index b3eba21..bd0fdf0 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetails.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetails.java
@@ -6,7 +6,12 @@
 import androidx.annotation.Nullable;
 import androidx.recyclerview.selection.ItemDetailsLookup;
 
+import fi.metropolia.capslock.dyslexiascreener.test.reverse.ReverseLettersFragment;
+import fi.metropolia.capslock.dyslexiascreener.test.selection.SelectionFragment;
+
 /**
+ * {@link ItemDetailsLookup.ItemDetails} for the {@link SelectionFragment}'s selection functionality.
+ *
  * @author Peetu Saarinen
  */
 public class SelectionItemDetails extends ItemDetailsLookup.ItemDetails<Long> {
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetailsLookup.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetailsLookup.java
index 4839021..d745b13 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetailsLookup.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemDetailsLookup.java
@@ -9,7 +9,13 @@
 import androidx.recyclerview.widget.RecyclerView;
 
 import fi.metropolia.capslock.dyslexiascreener.test.selection.SelectionAdapter;
+import fi.metropolia.capslock.dyslexiascreener.test.selection.SelectionFragment;
 
+/**
+ * {@link ItemDetailsLookup} for the {@link SelectionFragment}'s selection functionality.
+ *
+ * @author Peetu Saarinen
+ */
 public class SelectionItemDetailsLookup extends ItemDetailsLookup<Long> {
     private final RecyclerView recyclerView;
 
diff --git a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemKeyProvider.java b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemKeyProvider.java
index 04bbaf8..79b26a0 100644
--- a/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemKeyProvider.java
+++ b/app/src/main/java/fi/metropolia/capslock/dyslexiascreener/test/selection/selection/SelectionItemKeyProvider.java
@@ -2,9 +2,17 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.recyclerview.selection.ItemDetailsLookup;
 import androidx.recyclerview.selection.ItemKeyProvider;
 import androidx.recyclerview.widget.RecyclerView;
 
+import fi.metropolia.capslock.dyslexiascreener.test.selection.SelectionFragment;
+
+/**
+ * {@link ItemKeyProvider} for the {@link SelectionFragment}'s selection functionality.
+ *
+ * @author Peetu Saarinen
+ */
 public class SelectionItemKeyProvider extends ItemKeyProvider<Long> {
     private final RecyclerView recyclerView;