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作者：COX, DR; SOLOMON, PJ
作者单位：University of Adelaide
摘要：Methods are outlined for testing for serial correlation in large numbers of small samples, emphasis being placed on samples of size three. Some data on pulse rates are analyzed in illustration.
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作者：KUO, L
摘要：The prior distribution on the class of potency curves in quantal bioassay is assumed to be Ferguson''s Dirichlet distribution. Given integrated squared error loss and quantal response data, we derive the Bayes estimator in a linear space generated by the data. Some numerical examples and asymptotic results are also given.
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作者：LEITE, JG; OISHI, J; PEREIRA, CAD
摘要：Using data obtained by the general capture-recapture sequential sampling process, an analytical expression for the maximum likelihood estimate of the population size is introduced. It is shown that the bounded likelihood functions have at most two maxima. For the simple one-to-one case the estimate is unique.
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作者：VERBYLA, AP; VENABLES, WN
摘要：An extension of the growth curve model of Potthoff and Roy (1964) is presented. The extension arises naturally when parallel profiles are required, or profiles are concurrent at some known time point and may be of use for th analysis of longitudinal data from designed experiments. Linearization of a nonlinear model also results in this model. Under certain conditions, transformation of the model leads to seemingly unrelated multivariate regressions. In this case questions of identifiability an...
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作者：MAK, TK; LI, WK
作者单位：University of Hong Kong
摘要：This paper considers the estimation of the subgroup means of a response variable when the individuals in a random sample are allocated to the subgroups or classes by a fallible device. A double sampling scheme under which we determine also the true classes of the individuals in a subsample is utilized. A simple distributional-free estimator is proposed and the associated large-sample properties are also derived. The proposed estimator is also demonstrated by simulation studies to be more effic...
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作者：LAGAKOS, SW
摘要：This note considers partial likelihood score tests for association between a covariate process and survival time based on a proportional hazards regression model. We derive the asymptotic efficiency of the test based on a misspecified form of the covariate process relative to the test based on the correct form. The results can be used to assess the consequences of various types of misspecification.
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作者：GAIL, MH; TAN, WY; PIANTADOSI, S
作者单位：National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI); University of Memphis
摘要：We propose a test of the null hypothesis of no treatment effect in a randomized clinical trial that is based on the randomization distribution of residuals. These residuals result from regressing the response on covariates, but not treatment. In contrast to model-based score tests, this procedure maintains nominal size when the model is misspecified, and, in particular, when relevant covariates are omitted from the regression. The efficiency of the procedure is evaluated for regressions with s...
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作者：BARLOW, WE; PRENTICE, RL
作者单位：Fred Hutchinson Cancer Center
摘要：Several possible definitions of residuals are given for relative risk regression with time-varying covariates. Each such residual has a representation as an estimator of a stochastic integral with respect to the martingale arising from a subject''s failure time counting process. Previously proposed residuals for individual study subjects and for specific time points are shown to be special cases of this definition, as are previously derived regression diagnostics. An illustration and various g...
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作者：KUK, AYC
摘要：We consider sampling with probability proportional to size or aggregate size and derive a number of estimators of the finite population distribution function. The estimators are compared theoretically and empirically. By inverting the distribution function estimators, we obtain estimators of the finite population median. The performance of these median estimators are investigated.
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作者：OMAN, SD; SEIDEN, E
摘要：Switch-back designs, originally proposed for cow lactation experiments, are repeated measurement designs appropriate for experiments in which the responses of experimental units vary with time according to different rates. A method for constructing such designs to compare an arbitrary number of treatments is presented, together with their analysis of variance. Robustness of the switch-back design when the treatments have residual as well as main effects is considered. Switch-back and balanced ...
