What kind of research design is a randomized controlled trial?

A study design that randomly assigns participants into an experimental group or a control group. As the study is conducted, the only expected difference between the control and experimental groups in a randomized controlled trial (RCT) is the outcome variable being studied.

Is RCT a research design?

In comparison, the randomized controlled trial (RCT) or randomized controlled clinical trial4 is a research design where people or, more specifically, patients are allocated randomly to receive one of any number of clinical treatments.

What is randomized controlled trial in research?

The randomised control trial (RCT) is a trial in which subjects are randomly assigned to one of two groups: one (the experimental group) receiving the intervention that is being tested, and the other (the comparison group or control) receiving an alternative (conventional) treatment (fig 1).

What are the benefits of an RCT?

The randomised controlled trial (RCT) is considered to provide the most reliable evidence on the effectiveness of interventions because the processes used during the conduct of an RCT minimise the risk of confounding factors influencing the results.

What are randomised controlled trials good for?

For medical writers, randomised controlled trials are a valuable source of evidence. Their powerful experimental design can provide important medical information on the causality of medical interventions.

What are disadvantages of randomized controlled trials?

Disadvantages of randomized controlled trials. Despite the significant advantages of randomized controlled trials, there are a number of factors limiting the quality, number and progress of RCTs . There are a number of issues to be considered, such as those of design, barriers to participation, conduct and structure, analysis, reporting and costs.

What does randomized controlled trial stand for?

A randomized controlled trial (or randomized control trial; RCT) is a type of scientific (often medical) experiment that aims to reduce certain sources of bias when testing the effectiveness of new treatments; this is accomplished by randomly allocating subjects to two or more groups, treating them differently, and then comparing them with respect to a measured response.

What is a non-randomised controlled trial?

Non-randomized controlled trial.