One famous study followed a cohort of nurses over their lives, collect

One famous study followed a cohort of nurses over their lives, collecting data and health histories as they aged. Which of the following would be the most appropriate categorization of this study?

a. Cross-sectional study
b. Prospective study
c. Retrospective study
d. True experiment

ESSAYBID ANSWER

ANS: B
Prospective studies monitor a group of individuals to determine if and when disease occurs. A cross-sectional study examines relationships between potential causal factors and disease at a specific time. A retrospective study compares individuals with a particular condition or disease with those who do not have the disease. A true experiment involves both an experimental group who receives an intervention and a control group who does not receive an intervention.