A researcher wants to study the relationship between lifespan and cigarette smoking. For this study, he cannot ethically manipulate people to smoke cigarettes, so the researcher must rely on a correlational study. Based on the correlational approach, which of the following statements would be an appropriate conclusion?
A. Smoking cigarettes is related to decreases in life span.
B. A hard, stressful life causes people to smoke.
C. Shorter life span and cigarette smoking cause the other in equal proportions.
D. Cigarette smoking causes people to die young.
Answer:A
A researcher wants to study the relationship between lifespan and cigarette smoking. For this study, he cannot ethically manipulate people to smoke cigarettes, so the researcher must rely on a correlational study. Based on the correlational approach, which of the following statements would be an appropriate conclusion?
A. Smoking cigarettes is related to decreases in life span. B. A hard, stressful life causes people to smoke. C. Shorter life span and cigarette smoking cause the other in equal proportions. D. Cigarette smoking causes people to die young.