Results 11 to 20 of about 6,739,422 (290)
Wald Test Formulations in DIF Detection of CDM Data with the Proportional Reasoning Test
International Journal of Assessment Tools in Education, 2020 This study aims to conduct differential item functioning analyses in the context of cognitive diagnosis assessments using various formulations of the Wald test. In implementing the Wald test, two scenarios are considered: one where the underlying reduced
Ragıp Terzi +2 more
doaj +1 more source
Model-Based Wald Test for Adaptive Range-Spread Target Detection
IEEE Access, 2020 For the problem of range-spread target detection, many adaptive detectors commonly estimate the covariance matrix of the disturbance by utilizing the training data without target information.
Jiabao Liu +3 more
doaj +1 more source
Journal of Education, Health and Sport, 2020 Introduction. Kidney transplantation has become the best treatment for patients with end-stage of chronic renal failure. The issues of studying the causes and mechanisms of the development of renal transplant dysfunction in the late postoperative period,
V. V. Yakimenko
doaj +1 more source
Simple Wald tests of the fractional integration parameter : an overview of new results [PDF]
, 2008 This paper presents an overview of some new results regarding an easily implementable Wald test-statistic (EFDF test) of the null hypotheses that a time-series process is I(1) or I(0) against fractional I(d) alternatives, with d∈(0,1), allowing for ...
Gonzalo, Jesús +2 more
core +3 more sources
Dynamic panel model in bioeconomy modeling
Agricultural Economics (AGRICECON), 2022 Currently, technological development is driven by the search for solutions to prevent climate change and environmental degradation, increase energy efficiency, and meet societal needs in relation to avoiding conflict while navigating the implementation ...
Jakub Piecuch, Joanna Szarek
doaj +1 more source
On the Differential Geometry of the Wald Test with Nonlinear Restrictions [PDF]
Econometrica, 1996 We exploit the tools of differential geometry to provide a clear explanation for the finite sample lack of invariance of the Wald statistic to algebraically equivalent reformulations of the null hypothesis. The Wald statistic is shown, in general, to be an improper geometric quantity and hence is not invariant to reparametrizations.
Critchley, Frank +2 more
openaire +3 more sources
Graz Reading Comprehension Test
, 2023 Der GraLeV ist ein Verfahren zur Messung des Leseverständnisses (auf Wort-, Satz- und Textebene) von Kindern der dritten und vierten Schulstufe. Er besteht aus 4 Subtests mit insgesamt 38 Itemsets. Der GraLeV weist eine interne Konsistenz von Cronbachs α
Riedl, S. +4 more
core +1 more source
Garch Model Test Using High-Frequency Data
Mathematics, 2020 This work is devoted to the study of the parameter test for the Generalized Autoregressive Conditional Heteroskedasticity (GARCH) model. Based on the daily GARCH model, using the parameter estimator obtained by intraday high-frequency data, the adjusted ...
Chunliang Deng +3 more
doaj +1 more source
Prevalence, predictors and consequences of gambling on Children in Ghana
BMC Public Health, 2022 Background Gambling is illegal for children in Ghana. However, young people, including children, are increasingly engaged in gambling across the country. Gambling is harmful and poses developmental implications for the youth, including children.
Sylvester Kyei-Gyamfi +5 more
doaj +1 more source