The weakness of static group comparison is that the researcher
A)is biased.
B)cannot know whether group differences prior to the experiment or if the independent variable caused differences in post test outcomes.
C)cannot know whether group differences prior to the experiment or if the dependent variable caused differences in post test outcomes.
D)is unneeded.

Question

Quizplus · Accepted Answer

The weakness of static group comparison is that the researcher cannot know whether group differences prior to the experiment or if the independent variable caused differences in post test outcomes. This is a major limitation because it undermines the internal validity of the study. Without internal validity, it is difficult to draw any meaningful conclusions about the relationship between the independent variable and the dependent variable.

The Weakness of Static Group Comparison Is That the Researcher