A clinical trial in which two therapies are tested. Patients are randomly assigned to one treatment or another. Efforts are made to ensure the balance of important clinical factors between the two groups.
A scientific study to compare different medical treatments. In these studies, patients are assigned to the different treatment groups by chance. This design allows for the unbiased comparison of the treatments. If the study is also 'double-blinded' neither the patients nor the researchers know who is receiving the treatments under study.
A clinical trial in which subjects have been randomly assigned to the various groups in the study.
a prospective study comparing the effect of some intervention against a control intervention in groups of clients who are assigned randomly to the respective treatment groups (see Friedman et al
a study in which patients with similar traits, such as extent of disease, are assigned by chance to one of two groups
A clinical trial in which participants are randomly (that is, by chance) assigned to the groups or arms of the study - for example, to the control group or the group receiving the experimental intervention.
An epidemiologic experiment in which subjects in a population are randomly allocated into groups, usually called study and control groups, to receive or not to receive an experimental prevention or therapeutic product, maneuver, or intervention. The results are assessed by rigorous comparison of rates of disease, death recovery, or other appropriate outcome in the study and control groups, respectively. RCTs are generally regarded as the most scientifically rigorous method of hypothesis testing available in epidemiology.
An experiment designed to test the safety and efficacy of a medical technology in which people are randomly allocated to experimental or control groups, and outcomes are compared.
a clinical trial that uses chance to sort participants into groups: randomizing provides a mechanism based on numbers whereby groups will have similar characteristics and comparisons between treatments will be valid.
A study in which the participants are assigned by chance to separate groups that compare different treatments; 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. It is the patient's choice to be in a randomized trial.
An experimental study in which subjects are randomly assigned to treatment groups.
In a randomized clinical trial, each participant is assigned by chance (through a computer or a table of random numbers) to one of two groups. The investigational group receives the therapy, also called the active treatment. The control group receives either the standard treatment, if there is one, for their disease or condition, or a placebo.
(RAN-dum-eyezd KLIN-i-kul TRY-ul) A study in which patients with similar traits, such as extent of disease, are chosen or selected by chance to be placed in separate groups that are comparing different treatments. Because irrelevant factors or preferences do not influence the distribution of patients, the treatment groups are comparable and results of the different treatments used in different groups can be compared directly.
A study in which participants are assigned by chance to separate groups that compare different treatments. Neither the researcher nor the participant can choose the group. Using chance to assign people means that the groups will be similar and the treatments they receive can be compared. At the time of the trial, there is no way for the researchers to know which of the treatments is best. It is the person's choice to be in a randomized trial or not.