In which design are approximately an equal number of subjects exposed to each combination of treatment levels?
A)balanced experimental design
B)unbalanced experimental design
C)incomplete experimental design
D)pseudo-experimental design

Question

Quizplus · Accepted Answer

A balanced experimental design ensures that approximately an equal number of subjects are exposed to each combination of treatment levels, which helps control for extraneous variables and increases the internal validity of the study. Unbalanced experimental design involves unequal numbers of subjects per treatment group, while incomplete experimental design lacks one or more treatment combinations. Pseudo-experimental design refers to a study that lacks a control group or randomization.

In Which Design Are Approximately an Equal Number of Subjects