In Experimental Design, users will at times suggest use of a 2×2 matrix. This is not a practical approach for all but the rarest of occasions. Worse yet, some will teach the 2×2 matrix because it is simple. This misleads users that it is a reasonable option. This video explains the reasons why this design should never be used during phase 1 testing.
About Perry Parendo
Perry's Solutions, Inc. was founded to help companies achieve product and process breakthroughs using Design of Experiments (DOE). Research of industry training programs shows they do not address the required applications for these tools, resulting in their training investment falling short of needed and wanted improvement. The company leverages their extensive DOE experience in new product development and manufacturing operations to bring you an innovative yet effective methodology for all developers desiring a quantum-leap improvement in product or process effectiveness.