One-factor-at-a-time method: Difference between revisions

Revision as of 14:55, 26 September 2007

Revision as of 14:57, 26 September 2007

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The '''one-factor-at-a-time method''' (or OFAT) is a method of [[design of experiments|designing experiments]] involving the testing of [[factor]]s, or causes, one at a time instead of all simultaneously. Prominent text books and academic papers currently favor Factorial[[factorial experimental designs|factorial design]], a method pioneered by [[Ronald Fisher|Sir Ronald A. Fisher]], where multiple factors are changed at once. The reasons stated for favoring the use of factorial design over OFAT are three-fold:

1. OFAT requires more runs for the same precision in effect estimation<br />