Kowalick Arrays Result in Taguchi Testing Sometimes

Dr. Kowalich modified some of the Taguchi arrays in order to give more factors for testing without regard to factor interactions. To this end, he used the L₁₂(2¹¹) and L₁₈(2¹ X 3⁷) due to these arrays having the interactions distributed evenly across the array columns. Here is a list of the Kowalich arrays. Read more

If They Say This About Taguchi Testing Then Run Don’t Walk Away

OK, that title got your attention! What I am talking about? Well, some people promoting Taguchi methods of testing suggest that you can eliminate under performing test runs during the test. Here is a quote from the guy that runs StomperNet’s test software:

Lets say you are running a L18 — this has 18 different landing page recipies. While the test is running you will naturally see a couple of recipies that are doing significantly worse than the others. As this happens you can shut off these recipies. You can keep doing this until you are down to two recipies — i.e. - a split test which will confirm the results from the teguchi test.

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Why Use Taguchi Methods?

“Why use Taguchi methods?” - that is the first question most people ask when told about our software. The short answer is it allows you to quickly optimize your website conversion. That may be all you need to know, but I’m going to give a much more detailed answer.

The Taguchi method was developed by Dr. Genichi Taguchi. After World War II he was employed by the Japanese Ministry of Public Health and Welfare to work on the first national study of health and nutrition. This work led him to Morinaga Pharmaceutcal  where he explored efficient Read more