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The layout of 32 full factorial designs.
| Experimental Layout of Design Batches | |||||
|---|---|---|---|---|---|
| Coded Variables | Actual Variables | ||||
| Batch | X1 | X2 | Carbopol 934P Concentration | Poloxamer 407 Concentration | |
| D1 | −1 | 0 | 0.2% | 20% | |
| D2 | +1 | 0 | 0.4% | 20% | |
| D3 | −1 | −1 | 0.2% | 19% | |
| D4 | −1 | +1 | 0.2% | 21% | |
| D5 | +1 | −1 | 0.4% | 19% | |
| D6 | +1 | +1 | 0.4% | 21% | |
| D7 | 0 | 0 | 0.3% | 20% | |
| D8 | 0 | +1 | 0.3% | 21% | |
| D9 | 0 | −1 | 0.3% | 19% | |
| Independent variables | Coded values | Actual values | |||
| X1 | X2 | ||||
| X1 = Carbopol 934P concentration | −1 | 0.2% | 19% | ||
| 0 | 0.3% | 20% | |||
| X2 = Poloxamer 407 concentration | 1 | 0.4% | 21% | ||
