Failing to find a significant difference between the experimental and control groups on variables that were identified as extraneous or alternative in nature suggests:
A) these variables are responsible for any observed group differences.
B) these variables are not responsible for any observed group differences.
C) the independent variable is responsible for any observed group differences.
D) the independent variable is not responsible for any observed group differences.

Question

Quizplus · Accepted Answer

B) When no significant difference is found between experimental and control groups on extraneous or alternative variables, it suggests these variables are not responsible for any observed differences between the groups. This is because if these variables were influencing the outcome, differences would likely be observed.

Failing to Find a Significant Difference Between the Experimental and Control