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

Question

Quizplus · Accepted Answer

Blocking is used to reduce variation within an experiment by grouping similar experimental units together and then randomly assigning treatments within these blocks. This approach aims to control for factors that could introduce variability, making it easier to detect treatment effects.

In an Experiment the Primary Purpose of Blocking Is to Reduce