To determine the prevalence of smoking among new students in a university,researchers conduct an anonymous survey at the first day of classes.They find that 22% of women and 28% of men were smokers.What type of study design was used?
A) Ecologic
B) Cross-sectional
C) Cohort
D) Case-control
E) Systematic review

Question

Quizplus · Accepted Answer

This type of surveys,in which participants are seen once by researchers and several variables are measured at one time point,is called cross-sectional studies.These studies are particularly good to estimate the prevalence of a disease or exposure; for that reason,they are also called "prevalence studies."

To Determine the Prevalence of Smoking Among New Students in a University,researchers