Biometrika

最新文章

• APPROACH TO SCALING OF CATEGORIZED ATTRIBUTES AI翻译
  作者：HEALY, MJR; GOLDSTEIN, H
  摘要：The notion of minimizing the disagreement between parallel assessments of the same quantity unifies a number of current methods of scaling and leads to straightforward extensions to cover new problems. Applications are found in the assessment of physical maturity, the measurement of children''s behavior, and in longitudinal studies with sets of items at several occasions.
• NEW CLASS OF RESOLVABLE INCOMPLETE BLOCK DESIGNS AI翻译
  作者：PATTERSON, HD; WILLIAMS, ER
  作者单位：University of Edinburgh; University of Edinburgh
  摘要：This paper describes an algorithm for constructing resolvable incomplete block designs for any number of varieties v and block size k such that v is a multiple of k. These designs are called .alpha.-designs. They include as special cases some lattice and resolvable cyclic designs. Additional designs with 2 block sizes differing by 1 plot are derived by omitting 1 or more varieties of the .alpha.-designs. The designs are available with high efficiency factors for a wide range of parameter values.
• DESIGN PROBLEM FOR DETERMINING POPULATION DIRECTION OF MOVEMENT AI翻译
  作者：YANG, MCK
  作者单位：State University System of Florida; University of Florida
  摘要：Suppose that a group of animals moves from an unknown location to a particular area. Their migration cannot be seen, but at each spot of this particular area it is possible to estimate the arrival time of the animals by continual observation. Designs for allocating the observation stations to obtain a desirable estimate of the direction angle along which the animals move into this area are discussed. This problem arose from lobster research. Since lobsters move undetected on the sea floor, we ...
• ROBUST ESTIMATION OF DENSITY OF A FOREST STAND USING A NEW CONDITIONED DISTANCE METHOD AI翻译
  作者：COX, TF
  作者单位：University of Hull
  摘要：Estimators for the density of points in a plane may be unbiased for the spatial pattern for which they were designed but are usually biased for most others. Two new estimators are proposed which are approximately unbiased for a wide range of patterns, and are used on data in the form of the positions of the centers of trees in a forest stand.
• POWERS OF SOME TESTS OF EQUALITY OF NORMAL MEANS AGAINST AN ORDERED ALTERNATIVE AI翻译
  作者：MARCUS, R
  作者单位：Tel Aviv University
  摘要：Powers are compared of some tests of the equality of means in a 1-way analysis of variance model with ordered alternative. The test statistics are the likelihood ratio test, Williams''s test and a modified Williams''s test. [Drug dosage tests are mentioned].
• BIAS OF APPARENT ERROR RATE IN DISCRIMINANT-ANALYSIS AI翻译
  作者：MCLACHLAN, GJ
  作者单位：University of Queensland
• 2-WAY CONTINGENCY-TABLES FOR COMPLEX SAMPLING SCHEMES AI翻译
  作者：SHUSTER, JJ; DOWNING, DJ
  作者单位：State University System of Florida; University of Florida; Marquette University
  摘要：Methods for testing independence, quasiindependence and marginal symmetry in contingency tables are derived for a wide variety of sampling schemes including stratified multistage cluster sampling. The null hypothesis is a vector of linear and quadratic contrasts involving the probabilities. The asymptotic null distribution of the test static is chi-squared. The thoery can also be used to test equality of failure distributions in a stratified prospective multiclinic [human treatment] trial, joi...
• MONTE-CARLO STUDY OF POWER OF SOME 2-SAMPLE TESTS AI翻译
  作者：LEE, ET; DESU, MM; GEHAN, EA
  作者单位：University of Texas System; UTMD Anderson Cancer Center; State University of New York (SUNY) System; University at Buffalo, SUNY; SUNY Maritime College
• KOLMOGOROV-SMIRNOV TESTS WHEN PARAMETERS ARE ESTIMATED WITH APPLICATIONS TO TESTS OF EXPONENTIALITY AND TESTS ON SPACINGS AI翻译
  作者：DURBIN, J
  作者单位：University of London; London School Economics & Political Science
• EXPONENTIAL FAMILY DISTRIBUTION WITH A TRUNCATION PARAMETER AI翻译
  作者：LWIN, T
  作者单位：Monash University