The British Doctors study of the 1950 was the first study to show a link between
ID: 3056568 • Letter: T
Question
The British Doctors study of the 1950 was the first study to show a link between smoking and lung cancer. In 1951, investigators recruited 40,000 British male doctors and then monitored them for 50 years. The result indicated that many more doctors who smoked went on to develop lung cancer than those who did not smoke. What study design was used in these scenario? What type of variable is cigarettes? What type of variable is cancer? The British Doctors study of the 1950 was the first study to show a link between smoking and lung cancer. In 1951, investigators recruited 40,000 British male doctors and then monitored them for 50 years. The result indicated that many more doctors who smoked went on to develop lung cancer than those who did not smoke. What study design was used in these scenario? What type of variable is cigarettes? What type of variable is cancer? What study design was used in these scenario? What type of variable is cigarettes? What type of variable is cancer?Explanation / Answer
(a)
What study design was used in these scenario: Cohort Study (Prospective Observational Study
EXPLANATION: A research study in which people who receive a particular treatment are followed over time and compared with another group of people who are not affected by the condition.
In these scenario:
Particular treatment: smoking
over time: 50 years
Compared with another group of people who are not affected by the condition: those who did not smoke
(b) What type of variable is cigerettes: Indepndent variable
EXPLANATION: Variable which the reasearcher makes changes in order to study its impact on the dependent variable. In these scenerio: many mor doctors who smoked
(c) What type of variable is cancer: Depedent variable
EXPLANATION: Variable in which the researcher is interested. In thesescenerio: develop lung cacer
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