The use of chance alone to assign the participants in an experiment or trial to different groups in order to fairly compare the outcomes with different treatments. Randomization is an important feature of experimental design.
- Randomized clinical trial
Randomized controlled trial.
- Randomized controlled trial
(RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical interventions. One of these interventions is the standard of comparison or control. The control may be a standard practice, a placebo (“sugar pill”), or no intervention at all. Someone who takes part in a randomized controlled […]
In a random manner, as by chance alone. The participants in the trial were randomly assigned to receive aspirin or a placebo.
In medicine and statistics, the difference between the lowest and highest numeric values. For example, if five premature infants are born, weighing 2, 3, 4, 5, and 6 pounds, respectively, the range of their birth weights is 2 to 6 pounds.
- Range of motion
The full movement potential of a joint, usually its range of flexion and extension. For example, a knee might lack 10 degrees of full extension due to an injury.