## Should I bias factor state and if so, how?

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Jan 21, 2015

I have a DOE design where one of my 20 factors has a low probability in real life of being "on".

When the factor is "on", it has a very dominant effect on most outputs.

Normal DOE design would split the factor state 50/50 on/off across all tests.

It would seem a better DOE design where less than 50% of tests have this factor set to "on".

Is there a standard method I would somehow bias factor state to "off", the more typical, lower dominant state? Thanks - Paul