Clinical Trials

From the U.S. National Institutes of Health, provides regularly updated information about federally and privately supported clinical research in human volunteers.

A research methods tool created to help researchers, faculty and students with their research projects. Researchers can explore methods concepts to help them design research projects, understand particular methods or identify a new method, conduct their research, and write up their findings.

The International Clinical Trials Registry Platform Search Portal provides access to a central database containing the trial registration data sets from registries around the world.

The Cochrane Central Register of Controlled Trials (CENTRAL) is a highly concentrated source of reports of randomised and quasi-randomised controlled trials. The majority of CENTRAL records are taken from bibliographic databases (mainly MEDLINE and Embase), but records are also derived from other published and unpublished sources. In addition to bibliographic details (author, source, year, etc.) CENTRAL records will often include an abstract (a summary of the article). They do not contain the full text of the article.

An introduction to qualitative and quantitative research methods and study design.

A discussion on case control and cohort studies, with emphasis on the strengths and preferability of each research method.

An overview of randomized control trials (RCTs) and their usefulness in ruling out confounding variables.