diff --git a/applications/lazstats/docs/HelpNDoc/LazStats.hnd b/applications/lazstats/docs/HelpNDoc/LazStats.hnd
index ca333f878..acf66974d 100644
Binary files a/applications/lazstats/docs/HelpNDoc/LazStats.hnd and b/applications/lazstats/docs/HelpNDoc/LazStats.hnd differ
diff --git a/applications/lazstats/docs/chm/LazStats.chm b/applications/lazstats/docs/chm/LazStats.chm
index d5f45b97c..b9f6a8e32 100644
Binary files a/applications/lazstats/docs/chm/LazStats.chm and b/applications/lazstats/docs/chm/LazStats.chm differ
diff --git a/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.lfm b/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.lfm
index a55eb79c4..5dc413dc2 100644
--- a/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.lfm
+++ b/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.lfm
@@ -118,7 +118,7 @@ object GuttmanFrm: TGuttmanFrm
     AnchorSideRight.Control = ComputeBtn
     AnchorSideBottom.Control = Owner
     AnchorSideBottom.Side = asrBottom
-    Left = 163
+    Left = 169
     Height = 25
     Top = 274
     Width = 54
@@ -133,10 +133,10 @@ object GuttmanFrm: TGuttmanFrm
     TabOrder = 5
   end
   object ComputeBtn: TButton
-    AnchorSideRight.Control = ReturnBtn
+    AnchorSideRight.Control = CloseBtn
     AnchorSideBottom.Control = Owner
     AnchorSideBottom.Side = asrBottom
-    Left = 225
+    Left = 231
     Height = 25
     Top = 274
     Width = 76
@@ -150,30 +150,30 @@ object GuttmanFrm: TGuttmanFrm
     OnClick = ComputeBtnClick
     TabOrder = 6
   end
-  object ReturnBtn: TButton
+  object CloseBtn: TButton
     AnchorSideRight.Control = Owner
     AnchorSideRight.Side = asrBottom
     AnchorSideBottom.Control = Owner
     AnchorSideBottom.Side = asrBottom
-    Left = 309
+    Left = 315
     Height = 25
     Top = 274
-    Width = 61
+    Width = 55
     Anchors = [akRight, akBottom]
     AutoSize = True
     BorderSpacing.Left = 8
     BorderSpacing.Top = 8
     BorderSpacing.Right = 12
     BorderSpacing.Bottom = 8
-    Caption = 'Return'
-    ModalResult = 1
+    Caption = 'Close'
+    ModalResult = 11
     TabOrder = 7
   end
   object Bevel1: TBevel
     AnchorSideLeft.Control = Owner
     AnchorSideRight.Control = Owner
     AnchorSideRight.Side = asrBottom
-    AnchorSideBottom.Control = ReturnBtn
+    AnchorSideBottom.Control = CloseBtn
     Left = 0
     Height = 8
     Top = 258
diff --git a/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.pas b/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.pas
index 2b481be52..04275c9dc 100644
--- a/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.pas
+++ b/applications/lazstats/source/forms/analysis/measurement_programs/guttmanunit.pas
@@ -20,7 +20,7 @@ type
     AllBtn: TBitBtn;
     ResetBtn: TButton;
     ComputeBtn: TButton;
-    ReturnBtn: TButton;
+    CloseBtn: TButton;
     Label1: TLabel;
     Label2: TLabel;
     ItemList: TListBox;
@@ -48,7 +48,7 @@ var
 implementation
 
 uses
-  Math;
+  Math, Utils;
 
 { TGuttmanFrm }
 
@@ -75,10 +75,10 @@ begin
   if FAutoSized then
     exit;
 
-  w := MaxValue([ResetBtn.Width, ComputeBtn.Width, ReturnBtn.Width]);
+  w := MaxValue([ResetBtn.Width, ComputeBtn.Width, CloseBtn.Width]);
   ResetBtn.Constraints.MinWidth := w;
   ComputeBtn.Constraints.MinWidth := w;
-  ReturnBtn.Constraints.MinWidth := w;
+  CloseBtn.Constraints.MinWidth := w;
 
   Constraints.MinWidth := Width + w;  // make form a bit wider...
   Constraints.MinHeight := Height;
@@ -484,9 +484,11 @@ begin
     end;
 
     lReport.Add('');
-    lReport.Add('No. of Cases := %3d.  No. of items := %3d',[NoCases,NoSelected]);
+    lReport.Add('No. of Cases: %3d', [NoCases]);
+    lReport.Add('No. of items: %3d', [NoSelected]);
     lReport.Add('');
     lReport.Add('RESPONSE MATRIX');
+    lReport.Add('');
     first := 1;
     last := first + 5; // column (item) index
     if (last > NoSelected) then last := NoSelected;
@@ -547,7 +549,7 @@ begin
     end;
     lReport.Add('');
     CoefRepro := 1.0 - (totalerrors / (NoCases * NoSelected));
-    lReport.Add('Coefficient of Reproducibility := %6.3f', [CoefRepro]);
+    lReport.Add('Coefficient of Reproducibility:   %6.3f', [CoefRepro]);
 
     for j := 1 to NoSelected do
       if (ColProps[j-1] > (1.0 - ColProps[j-1])) then
@@ -556,7 +558,7 @@ begin
         Min_Coeff := Min_Coeff + (1.0 - ColProps[j-1]);
     Min_Coeff := Min_coeff / NoSelected;
 
-    lReport.Add('Minimal Marginal Reproducibility := %6.3f', [Min_Coeff]);
+    lReport.Add('Minimal Marginal Reproducibility: %6.3f', [Min_Coeff]);
 
     DisplayReport(lReport);
   finally
@@ -618,28 +620,9 @@ begin
 end;
 
 procedure TGuttmanFrm.UpdateBtnStates;
-var
-  i: Integer;
-  lSelected: Boolean;
 begin
-  lSelected := false;
-  for i := 0 to VarList.Items.Count-1 do
-    if VarList.Selected[i] then
-    begin
-      lSelected := true;
-      break;
-    end;
-  InBtn.Enabled := lSelected;
-
-  lSelected := false;
-  for i := 0 to ItemList.Items.Count-1 do
-    if ItemList.Selected[i] then
-    begin
-      lSelected := true;
-      break;
-    end;
-  OutBtn.Enabled := lSelected;
-
+  InBtn.Enabled := AnySelected(Varlist);
+  OutBtn.Enabled := AnySelected(Itemlist);
   AllBtn.Enabled := VarList.Items.Count > 0;
 end;