In employing the randomized block design,the primary interest lies in:
A) increasing the treatment sum of squares (SSTR).
B) reducing the block sum of squares (SSB).
C) improving the significance of any differences among treatment groups.
D) reducing the total sum of squares (SST).
E) increasing the total sum of squares (SST).

Question

Quizplus · Accepted Answer

The primary interest of employing randomized block design is to improve the significance of any differences among treatment groups. This is achieved by reducing the variability caused by extraneous factors (blocks) and allowing for a better comparison between the treatments. This reduces the chance of a Type I error and improves the power of the test. Therefore, option C is the best choice.

In Employing the Randomized Block Design,the Primary Interest Lies In