Question 14: In this experiment half of the doctors were given an aspirin to take every other day. What is this group called? ANSWER: experimental or treatment group Question 15: What do you think the ethical concerns are? ANSWER: Half of the subjects were not given the treatment (substance) that could possibly help their heart attack risk. Question 16: Why couldn’t the researchers have used a simple design? Why couldn’t they have given aspirin to a large group of male doctors and observed if they have fewer heart attacks than expected (according to health statistics)? ANSWER: This would not be a valid attempt to prove causation. To prove causation an experiment needs to be done. In an experiment a control and treatment group are compared. Question 17: a) What factors do you think the researchers should consider? b) Explain why you think the researchers should consider these factors. ANSWERS: a) Just to name a few – age, weight, cholesterol level, exercise, etc. b) They should be considered because to do a valid experiment both groups should be as similar as possible.
Question 18: a) The group that didn’t take the aspirin is called the ______ group. b) Explain your answer. ANSWERS: a) control b) The control group does not receive the treatment. In drug studies, the control group receives a placebo. Question 19: a) The group that did take the aspirin is called the ______ group. b) Explain your answer. ANSWERS: a) treatment or experimental b) The treatment (experimental) group receives the substance (drug or treatment). In drug studies, the treatment (experimental) group receives the drug.
- Spring '17
- Wendy Smith