After reading the paragraph below, answer the questions that follow.
Consider the following statement from the textbook: "Scientists hypothesize that higher anti-HPV antibody levels provide greater protection from HPV-related cancers compared to lower levels, but they don't yet have strong evidence to support this hypothesis."
-Suppose you design a study to test this hypothesis. Your study participants are adults between the ages of 25 and 40 (mean age = 32). From the following choices, select the groups of individuals who would make the best participants for the control group in your study.
A)a group of 100 vaccinated adult males and a group of 100 vaccinated adult females
B)a group of 100 unvaccinated adult males and a group of 100 vaccinated adult males
C)a group of 50 vaccinated adult males and a group of 150 vaccinated adult females
D)a group of 100 unvaccinated adult males and a group of 100 unvaccinated adult females

Question

Quizplus · Accepted Answer

In order to test the hypothesis that higher anti-HPV antibody levels provide greater protection from HPV-related cancers compared to lower levels, the study would need to compare individuals with different antibody levels. Therefore, the control group should consist of individuals who are not vaccinated against HPV, as vaccination is known to increase antibody levels. Additionally, the control group should be evenly split between males and females to control for differences in how HPV affects each group. Option D is the only choice that meets these criteria.

After Reading the Paragraph Below, Answer the Questions That Follow