Randomized block design: Difference between revisions

Revision as of 03:13, 29 January 2014

Revision as of 21:05, 14 February 2014

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The general rule is:

:"Block what you can; randomize what you cannot."

Blocking is used to remove the effects of a few of the most important nuisance variables. Randomization is then used to reduce the contaminating effects of the remaining nuisance variables. For important nuisance variables, blocking will yield higher significance in the variables of interest than randomizing.

==Table of randomized block designs==