Researchers reported that unmarried men are more likely to suffer from clinical depression than married men.These findings were based on the marriage histories of 700 men suffering from depression and 600 men not suffering from depression.
A)Prospective observational study
B)Experiment
C)Retrospective observational study

Question

Quizplus · Accepted Answer

This is a retrospective observational study as the researchers are looking back at the marriage histories of two groups of men (those suffering from depression and those not suffering from depression) in order to find a potential correlation between marital status and depression. They are not manipulating any variables or assigning subjects to different groups, hence it cannot be an experiment.

Researchers Reported That Unmarried Men Are More Likely to Suffer