Jerry signs up for a scientific study in which he will follow a special diet that may lower his high blood cholesterol level. This is a(n) ____.
A) intervention study
B) placebo study
C) epidemiological study
D) survey study
E) experimental study

Question

Quizplus · Accepted Answer

An intervention study is a type of study in which researchers manipulate or intervene in a participant's life in some way to test the effects of a new treatment or technology. In this case, Jerry is following a special diet as an intervention to lower his high blood cholesterol level.

Jerry Signs Up for a Scientific Study in Which He