A researcher is studying the effects of three drugs (A, B, and C) on blood chole

Question

A researcher is studying the effects of three drugs (A, B, and C) on blood cholesterol, in three different age groups. Which of the following is an example of an interaction effect? The youngest age group has the greatest difference in blood cholesterol at the start of the study, and the lowest by the end of the study Drug B lowers blood cholesterol more than Drug O A in the youngest age group, but they have equal effect on the oldest age group. Drug C lowers blood cholesterol by the greatest amount in all groups, while Drug B has no effect and Drug A minimal effect. The oldest age group has the highest blood cholesterol at the start of the study but the lowest blood cholesterol by the end.

Explanation / Answer

Correct answer: Option (D) The oldes age group has the highest blood cholesterol at the start of thestudy but the lowest blood chelesterol by the end

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