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Q. |
Dr. AB is designing a 3 x 7 factorial experiment. Which of the following is true about AB's study? |
A. | Dr. AB has 21 subjects. |
B. | Dr. AB's study has 2 independent variables: one with 3 levels and one with 7 levels |
C. | Dr. AB's study has 21 independent variables. |
D. | Dr. AB's study has 3 independent variables: one with 3 levels, one with 7 levels, and one with 21 levels. |
Answer» B. Dr. AB's study has 2 independent variables: one with 3 levels and one with 7 levels |
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