a. 1 level of factor A and 2 levels of factor B
b. 2 levels of factor A and 3 levels of factor B
c. 2 levels for both factors
d. 3 levels for both factors
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 the above
A two-factor, independent-measures research study is evaluated using an analysis of variance. The F-ratio for factor A has df = 1, 40 and the F-ratio for factor B has df = 3, 40. Based on this information, what are the df values for the AxB interaction?
a. df = 2, 40
b. df = 3, 40
c. df = 4, 40
d. df = 7, 40
For a two-factor experiment with 2 levels of factor A and 3 levels of factor B and n = 10 subjects in each treatment condition, how many participants are in each level of factor A?
For a two-factor study with 2 levels of factor A, 2...