the process of assigning patients to different forms of treatment in a research study in a random manner
adj. Describes an experiment or clinical trial in which animal or human subjects are assigned by chance to separate groups that compare different treatments. In a randomized clinical trial, neither the researchers nor the participants can choose which group. Using chance to assign people to groups means that the groups will be similar and that the treatments they receive can be compared objectively. At the time of the trial, it is not known which treatment is best.
not ordered. a method to reduce bias in experimentation ( e.g., a randomized trial).
An experimental study designed to assess the effects of a particular variable (like a drug or specific treatment) where subjects are assigned, randomly, to one of two groups, the experimental group or a control group. The experimental group receives the drug or treatment while the control group does not. Using this strategy, the effectiveness of the drug or treatment may be assessed.
set up or distributed in a deliberately random way
A trial in which patients are randomly assigned to one of two or more treatment groups, which may include a placebo group. Randomization minimizes the differences among groups by equally distributing people with particular characteristics among all the treatment groups.
Chosen at random. In a randomized research project, a computer chooses which patients receive the experimental treatment(s), and which patients receive the standard treatment.
Patient's treatment was randomly assigned.
Randomized clinical trial: where each patient is selected by chance (as by "a flip of the coin") to receive one of the various treatment options.
assigned to a group by chance, like the toss of a coin. Whether a participant receives a vaccine or control will depend on which group he/she is in.
Assignment to a clinical treatment arm by chance.
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. See the entire definition of Randomized
A study where the volunteers are assigned to receive a medicine or a placebo without bias.
Statistical method for even distribution without selection bias.
A method used to assign people to different groups in a research study - it is a method that is like rolling the dice.
A trial in which patients are randomly assigned to receive either drug or placebo.
In a clinical trial, eligible patients (those that meet the strict criteria of the research project) are randomly placed in one of the treatment plans so that the study is not biased.
Distributed according to chance.
TRIAL (RANDOMIZED CONTROL[LED] TRIAL, RANDOMIZED CLINICAL TRIAL, RCT). Experiment in which individuals are randomly allocated to receive or not receive an experimental preventive, therapeutic, or diagnostic procedure and then followed to determine the effect of the intervention.
technique used in a scientific study where participants are randomly assigned to one of two groups; used to control the effects of age, gender, etc. on the study outcome
A method of choosing subjects for a research study in which all members of a particular group have an equal chance of being selected.
a process used in clinical trials that uses chance to assign participants to different groups that compare treatments. Randomization means that each person has an equal chance of being in the treatment and comparison groups. This helps reduce the chance of bias in the results that might happen, if, for example, the healthiest people all were assigned to a particular treatment group. See also control group, clinical trials.
things or persons put in a random order so that every thing or person is equally likely to be selected; study subjects are randomly distributed into groups which are either subjected to the experimental procedure (or use of a drug) or which serve as controls.