Order-restricted tests for stratified comparisons of binomial proportions.
Biometrics
; 52(3): 1103-11, 1996 Sep.
Article
en En
| MEDLINE
| ID: mdl-8805770
ABSTRACT
The data set presented relates a binomial response to ordered levels of an explanatory variable, representing doses of a drug, with data collected at several centers. A study goal is to test independence of the response and the ordinal factor, assuming under the alternative only that the binomial parameter is a monotonically increasing function of the ordinal predictor. We present two likelihood-ratio tests that are sensitive to order-restricted alternatives. Simulating the exact distributions of the test statistics yields nearly exact P-values. We also discuss related analyses for comparing two groups on an ordinal response, and we propose a test that is sensitive to a stochastic ordering alternative.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Distribución Binomial
/
Biometría
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Biometrics
Año:
1996
Tipo del documento:
Article
País de afiliación:
Estados Unidos