Indicate whether the following study is an observational study or a controlled e
ID: 3238156 • Letter: I
Question
Indicate whether the following study is an observational study or a controlled experiment Records of patients who have had broken ankles are examined to see whether those who had physical therapy achieved more ankle mobility than those who did not. Select the correct answer below. This is a controlled since the patients were separated into two groups (in experiment which one group had physical therapy, and one did not) by the physical therapists, this is sufficiently rigorous to make this a controlled experiment. This is an observational study. Since the researchers did not directly treat the patients they did not take a sufficiently active role to make this a controlled experiment. This is an observational study. Since the researchers did not assign subjects to the control or treatment group beforehand, they did not satisfy a key feature of controlled experiments. This is a controlled experiment. Since the patients were separated into two groups (in which one group had therapy, and did not by the researchers, this is sufficiently rigorous to make this a controlled experiment.Explanation / Answer
The correct option is B
The study is observational study due to the observational studies compare outcome variable in treatment group is patients who had physical theraphy achieved more ankle obility with the outcome variable in the control group is patients who have had broken ankle or not