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Your search keyword '"Betz, M."' showing total 5 results
Start Over Author "Betz, M." Topic analysis of variance
5 results on '"Betz, M."'

1. The Method of Unweighted Means in Multivariate Analysis of Variance.

Author

Betz, M. Austin and Elliott, Steven D.

Abstract

The method of unweighted means in the multivariate analysis of variance with unequal sample sizes was investigated. By approximating the distribution of the hypothesis sums-of-squares-and-cross-products with a Wishart distribution, multivariate test statistics were derived. Monte Carlo methods and a numerical example illustrate the technique. (Author/BW)

Published
1984

2. Interaction Analysis in MANOVA.

Author

Betz, M. Austin

Abstract

Simultaneous test procedures (STPS for short) in the context of the unrestricted full rank general linear multivariate model for population cell means are introduced and utilized to analyze interactions in factorial designs. By appropriate choice of an implying hypothesis, it is shown how to test overall main effects, interactions, simple main, simple simple main and simple interaction effects. Implicit in the STP procedure is the control of the type I error rate for an implied family of tests. A set of simultaneous confidence bounds around contrasts of population cell means can be constructed without increasing the type I error rate. Numerical examples are given to illustrate the method. (Author)

Published
1976

3. Type IV Errors and Analysis of Simple Effects.

Author

Betz, M. Austin and Gabriel, K. Ruben

Abstract

This paper is concerned with testing hypotheses about main effects, simple effects, and interaction effects by means of analysis of variance. It presents alternative strategies for analyzing data sets for which a factorial model with two completely crossed, fixed factors is appropriate. (CTM)

Published
1978

4. Coherent Analysis-of-Variance Hypothesis-Testing Strategies: A General Model.

Author

Betz, M. Austin and Levin, Joel R.

Abstract

Logically consistent hypothesis-testing for factorial analysis of variance designs is proposed in the context of a hierarchical model. It is shown that all of the hypotheses associated with the traditional factorial model are conceptually independent and occupy the lowest levels of the hierarchy. (Author/JKS)

Published
1982

5. The Association between Indicators of Malnutrition and Hospital Disposition.

Author

Walrath, M., Coltman, A., Peterson, S., Roehl, K., Betz, M., Bacon, C., and Sowa, D.

Subjects
*ANALYSIS of variance, *ANTHROPOMETRY, *CHI-squared test, *COMPARATIVE studies, *GRIP strength, *INGESTION, *NURSING care facilities, *PHYSICAL diagnosis, *PROBABILITY theory, *REHABILITATION centers, *SKINFOLD thickness, *WEIGHT loss, *HOME environment, *DISCHARGE planning, *NUTRITIONAL status
Published
2013
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