The primary interest of designing a randomized block experiment is to:
A) reduce the variation among blocks
B) increase the between-treatments variation to more easily detect differences among the treatment means
C) reduce the within-treatments variation to more easily detect differences among the treatment means
D) increase the total sum of squares
E) none of these

Question

Quizplus · Accepted Answer

The primary goal of a randomized block experiment is to reduce the within-treatments variation so that any observed differences in the treatment means are more likely to be due to the actual treatments and not random variation. By keeping other factors constant within each block, we can better isolate the effect of the treatment on the response variable.

The Primary Interest of Designing a Randomized Block Experiment Is