Results 221 to 230 of about 5,611,792 (280)

Controlled trials: allocation concealment, random allocation, and blinding [PDF]

open access: possibleBMJ, 2015
The efficacy of nicotine patches in pregnant women who smoke was investigated using a randomised placebo controlled trial. The intervention was the administration of 16 hour nicotine patches until the time of delivery. Participants were 402 pregnant women older than 18 years who smoked at least five cigarettes a day and whose babies were between 12 and
P. Sedgwick
openaire   +3 more sources

Random allocation II

BMJ, 2009
A randomised single blind controlled trial investigated whether pelvic floor muscle training during pregnancy prevented urinary incontinence during and after pregnancy. The trial recruited healthy nulliparous women when they attended their first routine ultrasound.
P. Sedgwick
semanticscholar   +4 more sources

Stratified random allocation

BMJ, 2013
Researchers investigated the effects of manual lymph drainage on the development of lymphoedema related to breast cancer. A randomised single blinded controlled trial was performed. The intervention was a six months’ treatment programme consisting of guidelines about prevention of lymphoedema, exercise therapy, and manual lymph drainage.
P. Sedgwick
openaire   +3 more sources

The Home Office and Random Allocation Experiments

Evaluation Review, 2003
By examining the history of the random experiment in the Home Office in the United Kingdom, this article demonstrates that research is not an altogether rational process and that fashion, personality, and politics are at least as important as science and evidence when setting research and policy programs and determining methodologies. The article also
C. Nuttall
openaire   +4 more sources

Presenting Objects for Random Allocation

SSRN Electronic Journal, 2022
AbstractFor random allocation, whether a desirable rule exists or not hinges on the domain of agents' preferences, whose formation is affected by how objects are presented. We hence propose a model studying how to present objects so that the induced preference domain allows for designing a good rule.
Peng Liu, Sijia Xu
openaire   +1 more source

Randomized allocation processes

Random Structures & Algorithms, 2001
AbstractMany dynamic resource allocation and on‐line load balancing problems can be modeled by processes that sequentially allocate balls into bins. The balls arrive one by one and are to be placed into bins on‐line without using a centralized controller.
Volker Stemann, Artur Czumaj
openaire   +3 more sources

Random allocations and probabilistic languages [PDF]

open access: possible, 1988
This paper introduces a unified framework for the analysis of a class of random allocation processes that include: (i) the birthday paradox; (ii) the coupon collector problem; (iii) least-recently-used (LRU) caching in memory management systems under the independent reference model; (iv) the move-to-front heuristic of self-organizing search.
Loÿs Thimonier   +3 more
openaire   +1 more source

Random sampling versus random allocation

BMJ, 2011
Researchers investigated the effects of providing people with evidence based information about colorectal cancer and screening. A randomised controlled study design was used. The intervention was a brochure that included personalised risk of colorectal cancer, available screening options with possible benefits and harm, plus information on prevention ...
openaire   +2 more sources

Randomization by minimization for unbalanced treatment allocation

Statistics in Medicine, 2009
AbstractMinimization is a dynamic randomization technique that has been widely used in clinical trials for achieving a balance of prognostic factors across treatment groups, but most often it has been used in the setting of equal treatment allocations.
Baoguang Han   +2 more
openaire   +2 more sources

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