Generally, the unit of randomization in a randomized clinical trial (RCT) is the individual participant (the patient). Occasionally, the unit of randomization can be a cluster, such as hospitals, schools, villages, etc. When randomizing large groups, the concept of cluster randomized trials (CRTs) has become increasingly common. Patient clusters are allocated to the intervention arms […]
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Cluster randomized trials (CRTs) is the concept of grouping individuals for randomization into a treatment or control group. The design is increasingly becoming more common when randomizing large groups. It also reduces bias as there are less decision making required from clinicians or nurses. A study to compare the effects of a patients head position […]
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The concept of grouping subjects for randomization is called cluster randomized trials (CRT) – this concept is becoming increasingly common when randomizing large groups. However, when CRTs involve interventions at a cluster level, informed consent from participants may not always be possible to obtain. As informed consent is a fundamental ethical requirement for clinical trials, […]
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