Question

a team of researchers is testing the effectiveness of a new hpv vaccine. they randomly divide the subjects into two groups. group 1 receives new hpv vaccine, and group 2 receives existing hpv vaccine. the patients in the study do not know which group they are in. which is the treatment group? group 1 group 2 neither group which is the control group (if there is one)? group 1 group 2 no control group is this study blind, double blind, or neither? blind double - blind neither which best describes this research? placebo controlled experiment experiment controlled experiment survey

Explanation:

1. The treatment group receives the new intervention being tested. Here, Group 1 gets the new HPV vaccine, so it is the treatment group.
2. The control group is a comparison group. Group 2, which gets the existing HPV vaccine, serves as the control for comparison with Group 1.
3. Since the patients do not know which group they are in, it is a blind - study. In a double - blind study, both the patients and the researchers administering the treatment do not know who is in which group. There is no information suggesting researchers are also blinded, so it is just blind.
4. This is an experiment as it involves manipulating the variable (type of vaccine) and comparing the results between two groups. It is not a placebo - controlled experiment as there is no placebo involved, and it is a controlled experiment because there is a control group (Group 2).

Answer:

1. Group 1
2. Group 2
3. Blind
4. Experiment