A Researcher Identified 100 Men Over Forty Who Were Not

Multiple Choice

A researcher identified 100 men over forty who were not exercising and another 100 men over forty
With similar medical histories who were exercising regularly. She followed all the men for several
Years to see if there was any difference between the two groups in the rate of heart attacks. This is a
…

A) retrospective study
B) survey
C) randomized experiment
D) matched pairs experiment
E) prospective study