The blocks in the randomized block design are ____.

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The blocks in a randomized block design are constructed to be homogeneous, meaning that they consist of similar or identical units. This is important because it ensures that any differences observed between the treatments are due to the treatments and not to differences between the blocks. Randomization is used to assign the treatments to the blocks, but the blocks themselves are not randomly constructed. Additionally, the blocks do not need to be representative of the population, as they are used to control for variables that are known or suspected to affect the response variable. The blocks are also not self-selected.

The Blocks in the Randomized Block Design Are ____