A two-factor research study is used to evaluate the effectiveness of a new blood-pressure medication.In this two-factor study,Factor A is medication versus no medication and factor B is male versus female.The medicine is expected to reduce blood pressure for both males and females,but it is expected to have a much greater effect for males.What pattern of results should be obtained if the medication works as predicted?
A)A significant main effect for factor A (medication)
B)A significant interaction
C)A significant main effect for factor A and a significant interaction
D)None of these

Question

Quizplus · Accepted Answer

If the medication works as predicted, there should be a significant main effect for factor A (medication) as it is expected to reduce blood pressure for both males and females. However, since it is expected to have a greater effect for males, there should also be a significant interaction between factor A and factor B (male versus female). Therefore, the correct answer is C- A significant main effect for factor A and a significant interaction.

A Two-Factor Research Study Is Used to Evaluate the Effectiveness