randomization


Also found in: Dictionary, Thesaurus, Financial, Encyclopedia, Wikipedia.

randomization

 [ran″dom-ĭ-za´shun]
random assignment.
The use of randomization in the design of a clinical trial. From Gordis, 1996.

ran·dom·i·za·tion

(ran'dom-ĭ-zā'shun),
Random allocation, the process of selecting entities, for example, treatment regimens, using a formal system whereby each entity has a known, generally an equal chance of being selected. This may be accomplished by means of a table of random numbers, toss of a coin, or some other system in which selection or nonselection is determined by chance alone.

randomization

Etymology: ME, randoun, run violently
the process of assigning subjects or objects to a control or experimental group on a random basis.

randomization

Random assignment, random allocation, randomized allocation Statistics The selection of subjects or samples for each 'arm' of a study or experiment based on chance alone–ie, a theoretical coin toss, which is intended to minimize the influence of irrelevant details and selection bias, and produce statistically valid data. Cf Convenience sample.

ran·dom·i·za·tion

(ran'dŏm-ī-zā'shŭn)
Assignment of the subjects of experimental research to groups by chance.
Synonym(s): randomisation.

randomization (ranˈ·d·m·zāˑ·shn),

n a method based on chance in which participants of a clinical study are assigned to comparison and/or control and treatment groups. Randomization minimizes the differences among groups by equally distributing people with particular characteristics among all the trial groups. Randomization can also be done in laboratory and observational studies.

randomization

the performance of a function, e.g. selection, in a random manner.
References in periodicals archive ?
Robust Manager functionality allowing users to view, filter, update and export information on drug containers, drug assignments, shipments and randomization schedules.
Supposing each "state of nature" equally probable, the "nature" becomes a synonym for perfect randomization with no human control.
Mendelian randomization leverages genetic variation so that it acts as a proxy for an environmental factor.
The Cochrane review excluded studies using block randomization, or randomization of entire wards.
In this cohort, 68% of whom were women with a mean age of 53 years, 1,753 were randomized to receive acupuncture, 1,698 served as controls, and 10,395 who had declined randomization also received acupuncture.
1) Once again, his randomization failed to produce similar groups.
the Little Rock biotechnology company, has started the patient treatment phase of the clinical study for its AutoloGel System with the randomization of patients into the trials.
Due to the luck of the draw in the randomization for this small trial, the volunteers in the micronutrient group had a lower baseline CD4 count (356 vs.
Members of the LPH Environmental Leadership Group (a group of community residents organized around environmental health issues) were trained in survey research methods including survey design, randomization, recruitment and interview techniques, quality control, and confidentiality procedures.
The supplement changes the patient randomization scheme to a 2:1 ratio of MicroMed DeBakey VAD implants to Thoratec HeartMate XVE implants.
HandyTrac developed the randomization function as and added security feature for the property and maintenance manager.
This randomization step is performed independently for every user who opts to enter their age.