Why is it important to change one variable at a time in single case designs? [3068]

Q) Why is it important to change one variable at a time in single case designs?

Options:
A)Changing one variable allows isolation of the cause of the change
B) Changing more than one variable at a time confounds those independent variables
C) Both A and B are true
D) None of the above

Answer

C) Both A and B are true

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