We wish to evaluate the effectiveness of a certain drug on humans.We create a two-way ANOVA design with factor A = gender, factor B = dosage, and response variable = health.If there is a significant dosage/gender interaction, which of the following statements accurately describes this relationship?
A) The relationship between dosage and health is the same for men and women.
B) The relationship between dosage and health differs for men and women.
C) There is most likely a relationship between health and gender.
D) There is most likely a relationship between health and dosage.

Question

Quizplus · Accepted Answer

A significant dosage/gender interaction means that the effect of dosage on health is different for men and women. Therefore, option B is the correct choice. Options A, C, and D are not necessarily true as the interaction suggests that the relationship between dosage and health depends on the gender.

We Wish to Evaluate the Effectiveness of a Certain Drug