A study is conducted to see if a daily exercise intervention affects blood pressure among people with pre-hypertension. One hundred participants are recruited to participate, and half are randomly assigned to participate in the intervention while the others serve as a control group. What study design is being used?
A) epidemiological study
B) randomized controlled trial
C) animal experiment
D) placebo study
E) None of these.

Question

Quizplus · Accepted Answer

The study design being used is a randomized controlled trial, where participants are randomly allocated to either the intervention group or control group to assess the effect of the exercise intervention on blood pressure.

A Study Is Conducted to See If a Daily Exercise