Displaying similar documents to “Generalization of the Kappa coeficient for ordinal categorical data, multiple observers and incomplete designs.”

Efficiency of cropping system designs via base contrast

U. Bronowicka-Mielniczuk, J. Mielniczuk, T. Przybysz (2000)

Applicationes Mathematicae

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The present article is a continuation of previous papers by the same authors devoted to the efficiency of crop rotation experiments. We focus on plans distinguished by the cyclical pattern of the incidence matrix. For practical reasons, we slightly modify the efficiency coefficient. The relation between the resulting efficiency coefficients is examined. In addition, we provide a background material on crop rotation experiments.

Recursive Methods for Construction of Balanced N-ary Block Designs

Gheribi-Aoulmi, Z., Bousseboua, M. (2005)

Serdica Mathematical Journal

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2000 Mathematics Subject Classification: Primary 05B05; secondary 62K10. This paper presents a recursive method for the construction of balanced n-ary block designs. This method is based on the analogy between a balanced incomplete binary block design (B.I .E .B) and the set of all distinct linear sub-varieties of the same dimension extracted from a finite projective geometry. If V1 is the first B.I .E .B resulting from this projective geometry, then by regarding any block...

Toward a more ethical clinical trial.

Joseph B. Kadane, Nell Sedransk (1980)

Trabajos de Estadística e Investigación Operativa

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Current methods of conducting clinical trials require the patient to agree to have his treatment assigned randomly, where his individual characteristics are taken into account only to balance the treatment groups. A Bayesian alternative involves eliciting the prior opinions of the group of clinicians who designed the study. Each patient is then guaranteed that the treatment he will receive is the best for him either in the opinion of at least one individual clinician or as a consensus...

D-optimal cyclic two-dimensional block designs.

Jagdish N. Srivastava, A. M. Wijetunga (1983)

Trabajos de Estadística e Investigación Operativa

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In this paper we consider a class of incomplete block designs in which every block is two dimensional. Thus heterogeneity is removed not only between blocks, but also in two directions within each block. Such designs have been considered before in Srivastava (1977,1978). Here, we consider the class of cyclic designs of this type when the number of treatments ν is an odd number between 5 and 25, and present designs that are D-optimal within this class.

Control treatments in designs with split units generated by Latin squares

Shinji Kuriki, Iwona Mejza, Kazuhiro Ozawa, Stanisław Mejza (2014)

Biometrical Letters

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This paper deals with two-factor experiments with split units. The whole plot treatments occur in a repeated Latin square, modified Latin square or Youden square, while subplot treatments occur in a block design within the whole plots. The statistical properties of the considered designs are examined. Special attention is paid to the case where one of the treatments is an individual control or an individual standard treatment. In addition, we give a brief overview of work on the design...