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The so-called independent component (IC) model states that the observed p-vectorX is generated via X=[Lambda]Z+[mu], where [mu] is a p-vector, [Lambda] is a full-rank matrix, and the centered random vector Z has independent marginals. We consider the problem of testing the null hypothesis on the...
Persistent link: https://www.econbiz.de/10005006423
Clustered data arise commonly in practice and it is often of interest to estimate the mean response parameters as well as the association parameters. However, most research has been directed to address the mean response parameters with the association parameters relegated to a nuisance role....
Persistent link: https://www.econbiz.de/10005221548
A weighted multivariate signed-rank test is introduced for an analysis of multivariate clustered data. Observations in different clusters may then get different weights. The test provides a robust and efficient alternative to normal theory based methods. Asymptotic theory is developed to find...
Persistent link: https://www.econbiz.de/10005153071
Apple's iPad and other forms of tablet are reportedly gaining increasing popularity within the academic premises. Most of the published research on this topic has highly admired the positive role and impact of iPads on teaching and learning practices, as if an exogenous technological induction...
Persistent link: https://www.econbiz.de/10012048657
After a brief illustration of the hystory and of the characteristics of the most common primary and secondary batteries …
Persistent link: https://www.econbiz.de/10010806770
primary emotions due to socialization. The Johnson-Laird and Oatley hypothesis of five universal clusters of emotions is also … as universal, primary, basic, secondary, tertiary, and so forth. There are clear empirical advantages to differentiating …
Persistent link: https://www.econbiz.de/10010789567
Three quite different scales for measuring the amount of primary energy the world uses annually are currently in use … Intergovernmental Panel on Climate Change (IPCC), each has its own scale for measuring and recording primary energy. The purpose of this … primary energy. An example is presented to show how mixing of these scales, and not identifying them, constitutes an error in …
Persistent link: https://www.econbiz.de/10011055585
The long time asymptotics of the time spent on the positive side are discussed for one-dimensional diffusion processes in random environments. The limiting distributions under the log-log scale are obtained for the diffusion processes in the stable medium as well as for the Brox model. Similar...
Persistent link: https://www.econbiz.de/10008874502
being taken to draw more children into primary education and the paper considers ways to keep children in school. It also …
Persistent link: https://www.econbiz.de/10005045905
analysis. The literary method is defined as a way of obtaining written materials that can support the primary data as …. Originality/value The results are expected to be considered as one of the primary contributions to the determination of the …
Persistent link: https://www.econbiz.de/10014847787