Study design VII. Randomised controlled trials

Kate Ann Levin

doi:10.1038/sj.ebd.6400473

Study design VII. Randomised controlled trials

Evid Based Dent. 2007;8(1):22-3. doi: 10.1038/sj.ebd.6400473.

Author

Kate Ann Levin¹

Affiliation

¹ Child and Adolescent Health Research Unit, University of Edinburgh, Edinburgh, Scotland, UK.

PMID: 17380181
DOI: 10.1038/sj.ebd.6400473

Abstract

Previously in this series, I have given an overview of the main types of study design and the techniques used to minimise the likelihood of obtaining biased results. In this article I describe more fully randomised controlled trials, their uses, advantages and limitations.

MeSH terms

Bias
Humans
Randomized Controlled Trials as Topic* / methods
Sample Size