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An Example of Simultaneous Multivariate Linear Modelling of Among and Within Subject Variation

✍ Scribed by J. M. Singer; G. G. Koch; S. S. Stinnett; D. W. Warren

Book ID
102759127
Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
751 KB
Volume
30
Category
Article
ISSN
0323-3847

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✦ Synopsis

An example of siniultaneous linear modelling of among and within subject variation through weighted least squares methods is presented &B an alternative to standard multivariate analysis of variance techniques. The data pertain to a study of temporal characteristics of some aerodynamic parameters from a speech test u d to differentiate groups of individuals with different degrees of palatopharyngeal closure. Both methods are found to yield similar results with respect to the among group comparisons. but the simultaneous strategy enables some further reduction in dimensionality, and thereby extends the description of patterns in the data.

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This paper introduces into the research on trends in climate elements the multivariate statistical methods, namely principal component analysis (PCA) and cluster analysis, and demonstrates the benefits of their use. We also introduce the idea of normalization of the trends by their confidence interv