Results 1 to 10 of about 14,760,741 (339)
Homogeneity test for correlated binary data. [PDF]
PLoS ONE, 2015 In ophthalmologic studies, measurements obtained from both eyes of an individual are often highly correlated. Ignoring the correlation could lead to incorrect inferences. An asymptotic method was proposed by Tang and others (2008) for testing equality of
Changxing Ma, Guogen Shan, Song Liu
doaj +7 more sources
Homogeneity Test of the First-Order Agreement Coefficient in a Stratified Design [PDF]
Entropy, 2023 Gwet’s first-order agreement coefficient (AC1) is widely used to assess the agreement between raters. This paper proposes several asymptotic statistics for a homogeneity test of stratified AC1 in large sample sizes.
Mingrui Xu +3 more
doaj +2 more sources
An accurate test for homogeneity of odds ratios based on Cochran's Q-statistic [PDF]
BMC Medical Research Methodology, 2015 Background: A frequently used statistic for testing homogeneity in a meta-analysis of K independent studies is Cochran's Q. For a standard test of homogeneity the Q statistic is referred to a chi-square distribution with K - 1 degrees of freedom. For the
AF Schmidt +28 more
core +2 more sources
Testing Slope Homogeneity in Large Panels [PDF]
SSRN Electronic Journal, 2005 This paper proposes a modi?ed version of Swamy’s test of slope homogeneity for panel data models where the cross section dimension (N) could be large relative to the time series dimension (T).
M. Pesaran, Takashi Yamagata
semanticscholar +7 more sources
A New Protocol for Homogeneity Testing in Feed Mill Concentrate Rations [PDF]
AnimalsTo ensure an accurate homogeneity test, animal feed manufacturers should apply standardised techniques and procedures, which aim to guarantee the product quality.
Raphaela Cenci Vidal +7 more
doaj +2 more sources
Two-Sample Multivariate Test of Homogeneity [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2003 Given independent multivariate random samples X1, X2,.... , and Y1, Y2,..... , from distributions F and G, a test is desired for Ho: F = G against general alternatives.
Ali S. Barakat
doaj +1 more source
Homogeneity Test for Multiple Semicontinuous Data with the Density Ratio Model
Mathematics, 2023 The density ratio model has been widely used in many research fields. To test the homogeneity of the model, the empirical likelihood ratio test (ELRT) has been shown to be valid. In this paper, we conduct a parametric test procedure.
Yufan Wang, Xingzhong Xu
doaj +1 more source
Sichuan jingshen weisheng, 2021 The purpose of this article was to introduce the odds ratio analysis method of g×2×2 table data and the calculation method based on SAS software. The contents included the following aspects： firstly， the homogeneity test of the odds ratio of the data in ...
Hu Chunyan, Hu Liangping
doaj +1 more source
Journal of Water and Climate Change, 2023 Fluctuations in the precipitation pattern often tend to have an impact on the availability of water, making it necessary to explore spatiotemporal variations in rainfall. This study explores the time series analysis of the rainfall from 1952 to 2019. The
Sanjay Kumar +2 more
doaj +1 more source
Preparation of Sepiolite Reference Material for Chemical Composition Analysis
Yankuang ceshi, 2021 BACKGROUND Sepiolite is a very important non-metallic mineral, which is widely used in aviation, animal husbandry, the chemical industry, environmental protection and other fields.
WEI Shuang +5 more
doaj +1 more source