Business Statistics

Chapter 12 | Analysis of Variance and Experimental Designs 407

variables simultaneously in one experimental design. In a factorial design, a researcher can control the

effect of multiple treatment variables. In addition, factorial design provides an opportunity to study

the interaction effect of two treatment variables. It is important to understand that the randomized

block design concentrates on one treatment (column) and control for a blocking effect (row effect).

Randomized block design does not provide the opportunity to study the interaction effect of treatment

and block. This facility is available only in factorial design.

12.6.1