When there is one source of extraneous variation distorting the results of an experiment, the preferred experimental design is
A) a contingency table.
B) a Latin Square design.
C) a factorial design.
D) a randomized block design.
E) a completely randomized design.

Question

Quizplus · Accepted Answer

A randomized block design is preferred when there is one source of extraneous variation distorting the results of an experiment because it allows for the blocking of this variation, thus reducing its impact on the outcome of the experiment.

When There Is One Source of Extraneous Variation Distorting the Results