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Robustness of block designs on the basis of pairwise treatment comparisons against missing data

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Title Robustness of block designs on the basis of pairwise treatment comparisons against missing data
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Creator Krishan Lal
Rajender Parsad
V.K. Gupta
 
Subject BIB designs
Efficiency criterion
Pairwise treatment comparisons
Robustness
Variance balanced block designs
 
Description Not Available
Robustness of incomplete block designs against the unavailability of data has been investigated in the literature in terms of average variance of all possible pairwise treatment comparisons in the design. But if we examine the robustness of a design for the loss of observation(s) on the basis of pairwise treatment comparisons, loss of information of some of treatment comparisons may be more than that the loss of information on the basis of average variance of the residual design. A design that is robust on the basis of overall efficiency may not be robust when the efficiency is worked out on the basis of paired treatment comparisons. We, therefore, investigate all the estimates of individual pairwise treatment contrasts for the loss of any number of observation(s) in a block for balanced incomplete block design and variance balanced block designs. Designs that are robust on the basis of average variance but not on the basis of pairwise treatment contrasts have been identified.
Not Available
 
Date 2017-06-23T04:14:16Z
2017-06-23T04:14:16Z
2012
 
Type Research Paper
 
Identifier Lal, Krishan, Parsad, Rajender and Gupta, V.K. (2012). Robustness of block designs on the basis of pairwise treatment comparisons against missing data. Model Assisted Statistics and Applications, 7, 75-80: DOI:10.3233/MAS-2011-0213
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/4399
 
Language English
 
Relation Not Available;
 
Publisher IOS Press