Results 261 to 270 of about 501,153 (319)

Incomplete block designs for genetic testing: statistical efficiencies of estimating family means

open access: closedCanadian Journal of Forest Research, 1998
A half-sib progeny trial with single-tree plots on one test site of various environmental variations is simulated to examine the relative statistical efficiencies of randomized incomplete block designs (ICBs) over their corresponding randomized complete block design (RCB) in estimating family means. The ICBs with full constraint (FC), half constraint (
Yong‐Bi Fu   +3 more
semanticscholar   +4 more sources

A statistical evaluation of replicated block designs and spatial variability in sorghum performance trials

open access: closedJournal of Crop Improvement, 2019
Success of hybrid performance trials has always been susceptible to the efficiency at which the experimental design can remove any effect of spatial autocorrelation associated with environmental fa...
N. Ace Pugh   +5 more
semanticscholar   +3 more sources

22 Block designs: Their combinatorial and statistical properties

open access: closedDesign and analysis of experiments, 1996
Publisher Summary This chapter discusses the combinatorial and statistical properties of block designs. The theory of discrete designs is intimately related to many other areas of combinatorial theory. Block designs have opened up many interesting and challenging problems in combinatorial mathematics. The fundamental problems related to block designs,
Tadeusz Caliński, Sanpei Kageyama
semanticscholar   +3 more sources

A STATISTICAL TEST FOR RANKING DATA FROM PARTIALLY BALANCED INCOMPLETE BLOCK DESIGNS

open access: closedJournal of Sensory Studies, 2011
ABSTRACTThe analysis of partially balanced incomplete block (PBIB) ranked data is discussed. Two examples are given to illustrate two alternative approaches. Analysis of PBIB ranking data is not covered in any of the standard sensory evaluation texts and this expository note is meant to help fill this gap.
D. J. Best   +2 more
semanticscholar   +4 more sources

Some Statistical Properties of Nested Block Designs

open access: closed, 1998
Nested block designs in a wide sense are newly discussed from a statistical point of view. Some statistical properties of such designs are presented with some constructions. The corresponding properties of the usual nested block designs in the literature are included as a special case.
Stanisław Mejza, Sanpei Kageyama
semanticscholar   +3 more sources

EXTENDED STATISTICAL ANALYSIS OF RANKED DATA FROM BALANCED INCOMPLETE BLOCK AND PAIRED COMPARISON DESIGNS

open access: closedJournal of Sensory Studies, 2000
ABSTRACTThe usual Durbin analysis for ranked data obtained from a balanced incomplete block design is extended to allow for (1) dispersion effects, (2) a predetermined ordering of products and (3) more general trends. An application to paired comparison data is given. Calculation of p‐values via Monte Carlo simulation is suggested.
D. J. Best, J. C. W. Rayner
openalex   +2 more sources

On the Use of a Friedman-Type Statistic in Balanced and Unbalanced Block Designs

open access: closedTechnometrics, 1981
Distribution-free tests and multiple comparison procedures are considered for randomized block designs. A general Friedman-type statistic is defined that is usable in almost any block design with arbitrary missing data structure. For balanced incomplete block designs a multiple comparison procedure and exact tables are given for a statistic equivalent ...
John H. Skillings, Gregory A. Mack
  +4 more sources

Bahadur Efficiency of Observational Block Designs

Journal of the American Statistical Association, 2023
To be convincing, an observational or nonrandomized study of causal effects must demonstrate that its conclusions cannot be readily explained by a small unmeasured bias in the way individuals were assigned to treatment or control.
P. Rosenbaum
semanticscholar   +1 more source

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