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A randomized controlled trial (or randomized control trial; [2] RCT) is a form of scientific experiment used to control factors not under direct experimental control. Examples of RCTs are clinical trials that compare the effects of drugs, surgical techniques, medical devices, diagnostic procedures, diets or other medical treatments.
United States Department of Health and Human Services. Website. www .cdc .gov. The Centers for Disease Control and Prevention ( CDC) is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services, and is headquartered in Atlanta, Georgia.
A research institute, research centre, research center or research organization is an establishment founded for doing research. Research institutes may specialize in basic research or may be oriented to applied research. Although the term often implies natural science research, there are also many research institutes in the social science as ...
Research has been defined in a number of different ways, and while there are similarities, there does not appear to be a single, all-encompassing definition that is embraced by all who engage in it. Research, in its simplest terms, is searching for knowledge and searching for truth.
Clinical research is a branch of medical research that involves people and aims to determine the effectiveness ( efficacy) and safety of medications, devices, diagnostic products, and treatment regimens intended for improving human health. [1] [2] These research procedures are designed for the prevention, treatment, diagnosis or understanding ...
A multicenter research trial is a clinical trial that involves more than one independent medical institutions in enrolling and following trial participants. [1] In multicenter trials the participant institutions follow a common treatment protocol and follow the same data collection guidelines, and there is a single coordinating center that ...
e. Educational research refers to the systematic collection and analysis of data related to the field of education. Research may involve a variety of methods [1] [2] [3] and various aspects of education including student learning, interaction, teaching methods, teacher training, and classroom dynamics. [4]
A case–control study (also known as case–referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute. Case–control studies are often used to identify factors that may contribute to a medical condition by comparing subjects who ...