Experimental Design Definition/Meaning:
A system of allocating treatments to experimental units so
that the effects of the treatments may be estimated by statistical methods. The
basic principles of experimental design are replication, i.e. the application of
the same Treatment to several units, randomization, which ensures that each unit
has the same probability of receiving any given treatment, and blocking, i.e.
grouping of similar units, each one to receive a different treatment. Factorial
designs are used to allow different types of treatment, or factors, to be tested
simultaneously. Analysis of variance is used to assess the significance of the
treatment effects.
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