What is the main limitation of randomized block designs?
A)They require an equal number of rows,columns,and treatment levels,which is sometimes problematic.
B)They do not allow the researcher to examine interactions of the external variables with each other or with the independent variable.
C)The researcher can control for only one external variable.
D)The number of treatment combinations increases multiplicatively with an increase in the number of variables or levels.

Question

Quizplus · Accepted Answer

Randomized block designs are limited by the fact that they allow the researcher to control for only one external variable, which can be a significant constraint when multiple external factors need to be accounted for.

What Is the Main Limitation of Randomized Block Designs