A Psychopathologist Wishes to Compare the Prevalence of Suicidal Ideation

Multiple Choice

A psychopathologist wishes to compare the prevalence of suicidal ideation among a sample of people with major depressive disorder to the prevalence of such ideation among a sample of those without the disorder. It is critical that the two groups be as similar as possible with regard to factors unrelated to the research question. This concern is BEST addressed using a ______.

A) double-blind study
B) longitudinal study
C) match subjects design
D) randomized control trial