A
B
C
D
-
-
-
-
-
-
+
+
-
+
-
+
-
+
+
-
+
-
-
+
+
-
+
-
+
+
-
-
+
+
+
+
AB
AC
AD
BC
BD
CD
+
+
+
+
+
+
+
-
-
-
-
+
-
+
-
-
+
-
-
-
+
+
-
-
-
-
+
+
-
-
-
+
-
-
+
-
+
-
-
-
-
+
+
+
+
+
+
+
I=ABCD
I=ABCD
AB=CD
AB=CD
AC=BD
AC=BD
AD=BC
AD=BC
2 Way Interactions
2 Way Interactions
Confounded with
Confounded with
each other
each other
A
B
C
D
-
-
-
-
-
-
+
+
-
+
-
+
-
+
+
-
+
-
-
+
+
-
+
-
+
+
-
-
+
+
+
+
ABC
ACD
BCD
ABD
-
-
-
-
+
-
-
+
+
+
-
-
-
+
-
+
+
-
+
-
-
-
+
+
-
+
+
-
+
+
+
+
I=ABCD
I=ABCD
A = BCD
A = BCD
B = ACD
B = ACD
C = ABD
C = ABD
D = ABC
D = ABC
Factors Confounded
Factors Confounded
with 3-Way
with 3-Way
Interactions
Interactions
3 --
3 --
Way Way
Way Way
InteractionsInteractions
InteractionsInteractions
2 -
2 -
 |
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