| Factorial designs
involve testing several factors at two levels,
high and low. In a Full Factorial experiment
every possible combination of factors and
permutations is tested. If there are n factors
there are 2n treatments.
The design matrix shows the combinations
for a 22 design
| Treatment |
A |
B |
AB
|
| 1 |
-1 |
-1 |
+1 |
| 2 |
+1 |
-1 |
-1 |
| 3 |
-1 |
+1 |
-1 |
| 4 |
+1 |
+1 |
+1 |
Refer to Fractional
Factorial Designs to see how a fractional
factorial design is created. |