Why do investigators use a placebo in clinical by Dr. Janet Forrester

Question 2 / 13: Why do investigators use a placebo in clinical trials?

Answer:

It allows the investigators to separate the effect of the medication or procedure

tested from the placebo effect (an effect resulting from the power of suggestion). The use

of a placebo also helps to blind the study, which prevents the investigator or volunteer

from influencing the study results based on prior knowledge of the treatment allocation.

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Quiz Home Page

https://www.jobilize.com/randomized-controlled-trials-quiz-by-dr-janet-forrester-tufts

Randomized Controlled Trials (RCT), Relative Risk

Author:

Dr.Janet ForresterProfessor

Tufts University School of Medicine

USA

Access: Public Partially Instant Grading

Attribution: Janet, E.A. Forrester, Kwan Ho Kenneth Chui, Steven Cohen, Michael D. Kneeland, Alice Tang, David Tybor. Epidemiology and Biostatistics 2010. (Tufts University OpenCourseWare), http://ocw.tufts.edu/Course/65/ (Accessed 3 May, 2014). License: Creative Commons BY-NC-SA

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