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Filtering by: Committee Member Ramsey, Fred Degree Field Statistics Rights Statement Copyright Not Evaluated

Diagnostic tools for overdispersion in generalized linear models

Creator:

Ganio-Gibbons, Lisa M.

Abstract:

Data in the form of counts or proportions often exhibit more variability than that predicted by a Poisson or binomial distribution. Many different models have been proposed to account for extra-Poisson or extra-binomial variation. A simple model includes a single heterogeneity factor (dispersion parameter) in the variance. Other models that...

Resource Type:

Dissertation
Multiple comparisons for the balanced two-way factorial : an applied Bayes rule (k-ratio) approach

Creator:

Pennello, Gene A.

Resource Type:

Dissertation
F-tests in partially balanced and unbalanced mixed linear models

Creator:

Utlaut, Theresa L.

Abstract:

This dissertation considers two approaches for testing hypotheses in unbalanced mixed linear models. The first approach is to construct a design with some type of structure or "partial" balance, so that some of the optimal properties of a completely balanced design hold. It is shown that for a particular type...

Resource Type:

Dissertation
Tools for environmental statistics : creative visualization and estimating variance from complex surveys

Creator:

Courbois, Jean-Yves Pip

Abstract:

Environmental monitoring poses two challenges to statistical analysis: complex data and complex survey designs. Monitoring for system health involves measuring physical, chemical, and biological properties that have complex relations. Exploring these relations is an integral part of understanding how systems are changing under stress. How does one explore high dimensional...

Resource Type:

Dissertation