Results 221 to 230 of about 20,682 (267)

A Study on the ED90 of Esketamine Combined with Ropivacaine for Early Epidural Analgesia During the First Stage of Labor in Nulliparous Women: A Randomized, Sequential Dose-Finding Trial. [PDF]

Int J Womens Health
Lin X, Tu Y, Qiu P, Zhang Y, Chen Y, Cao Z.   +5 more
europepmc   +1 more source

The problematic history of randomised controlled trials Part 2: Hill's 'pragmatic' view of randomisation and its origins. [PDF]

J R Soc Med
Matthews RA.
europepmc   +1 more source

Cluster minimal sufficient balance (CMSB): an efficient covariate balancing randomization method for cluster randomized trials. [PDF]

BMC Med Res Methodol
Cai J, Suo S, Ndip V, Khairallah C, Zhang B, Zeng L, Yan H, Shao F, Chen T, Li C.   +9 more
europepmc   +1 more source

A theoretical analysis of the power of biased coin designs

Journal of Statistical Planning and Inference, 2008
Outlining some recently obtained results of Hu and Rosenberger [2003. Optimality, variability, power: evaluating responseadaptive randomization procedures for treatment comparisons. J. Amer. Statist. Assoc. 98, 671–678] and Chen [2006.
Alessandro Baldi Antognini
exaly   +5 more sources

The Adaptive Biased Coin Design for Sequential Experiments

Annals of Statistics, 1978
In comparing two treatments, eligible subjects come to the experiment sequentially and must be treated at once. To reduce experimental bias and to increase the precision of inference about treatment effects, the adaptive biased coin design, which offers a compromise between perfect balance and complete randomization, is proposed and analyzed.
L J Wei
exaly   +4 more sources

A new 'biased coin design' for the sequential allocation of two treatments

Journal of the Royal Statistical Society Series C: Applied Statistics, 2004
Efron's (1971) Biased Coin Design is a well-known randomization technique that helps neutralize selection bias in sequential clinical trials for comparing treatments, while keeping the experiment fairly balanced.
Alessandro Baldi Antognini, Alessandra Giovagnoli   +1 more
exaly   +1 more source

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Power efficiency of Efron’s biased coin design

Journal of Statistical Planning and Inference, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David Azriel
exaly   +2 more sources