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(n) ________________________ .
A)retrospective study
B)matched pairs experiment
C)randomized experiment
D)survey
E)prospective study

Question

Quizplus · Accepted Answer

This is a prospective study because it involves following a group of individuals over time to observe outcomes, such as the rate of heart attacks, based on their exposure to a certain factor (in this case, exercising regularly vs. not exercising).

A Researcher Identified 100 Men Over Forty Who Were Not