In an experiment the primary purpose of blocking is to reduce
A) randomness.
B) variation.
C) confounding.
D) undercoverage.
E) bias.

Name: In an experiment the primary purpose of blocking is to reduce A) randomness. B) variation. C) confounding. D) undercoverage. E) bias.
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Question

Quizplus · Accepted Answer

Blocking is used in experiments to reduce variation by controlling for variables that might affect the response variable, thus making it easier to detect the effect of the treatment.

In an Experiment the Primary Purpose of Blocking Is to Reduce