Results 291 to 300 of about 5,213,227 (370)

Restricted Randomization versus Blocking

International Statistical Review / Revue Internationale de Statistique, 1985
La randomisation restreinte peut etre superieure a l'utilisation de blocs artificiels quand on dispose de peu de parcelles. On presente de bonnes methodes de randomisation restreinte pour 2 ou 4 objets repartis en 8 parcelles constituant un rectangle 2 ...
R. Bailey
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Restricted randomization and quasi-Latin squares

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1950
P. M. Grundy, M. J. R. Healy
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Restricted randomization designs in clinical trials.

Biometrics, 1979
Though therapeutic clinical trials are often categorized as using either "randomization" or "historical controls" as a basis for treatment evaluation, pure random assignment of treatments is rarely employed. Instead various restricted randomization designs are used.
R. Simon
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Significance tests with restricted randomization design

Biometrika, 1983
Summary: Experimental subjects are assigned to one of two treatments sequentially by restricted randomization assignment rules. Significance tests generated from these rules are discussed. Under rather mild conditions on the test scores the asymptotic null permutational distribution of tests based on the urn design [see the second author, A class of ...
R. Smythe, L. J. Wei
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Valid Restricted Randomization for Unbalanced Designs

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1993
SUMMARY Sufficient conditions for strong validity of randomization are given, for designs whose block structure corresponds to an association scheme. These conditions generalize previous results for orthogonal designs and balanced designs. Applications to restricted randomization of neighbour-balanced designs are discussed.
H. Monod, R. A. Bailey
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An Evaluation of Super-Valid Restricted Randomization

Journal of Agricultural, Biological, and Environmental Statistics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
E. Williams, H. Piepho
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Interval estimation with restricted randomization rules

Biometrika, 1989
In comparing two treatments A and B in a clinical trial usually patients from ethical points of view are not assigned to treatment groups by complete randomization. In this paper a general class of assignment rules including the biased coin design, the urn design, and the adaptive biased coin design is considered.
L. J. Wei, R. Smythe, C. Mehta
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Restricted Randomization: A Practical Example

Journal of the American Statistical Association, 1987
Abstract A method of restricted randomization, which avoids bad patterns in the treatments but retains validity in the analysis, is demonstrated on an example that exhibits many features of real agricultural experiments, such as untidy treatment structure and uncertainty about blocking. The method uses permutation groups.
R. A. Bailey
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