Rao and Wald Tests for Nonhomogeneous Scenarios [PDF]
Sensors, 2012 In this paper, we focus on the design of adaptive receivers for nonhomogeneous scenarios. More precisely, at the design stage we assume a mismatch between the covariance matrix of the noise in the cell under test and that of secondary data.
Danilo Orlando +2 more
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Rao and Wald tests for adaptive detection in partially homogeneous environment with a diversely polarized antenna. [PDF]
ScientificWorldJournal, 2013 This study considers Rao test and Wald test for adaptive detection based on a diversely polarized antenna (DPA) in partially homogeneous environment. The theoretical expressions for the probability of false alarm and detection are derived, and constant ...
Zhang C, Zhang J, Liu C.
europepmc +2 more sources
External prescription circulation and chronic medication refills via internet hospital: a real-world study of patient characteristics in eastern China. [PDF]
Front Public HealthBackgroundThe COVID-19 pandemic has accelerated the adoption of internet-based care and electronic prescription systems, yet real-world evidence describing patient characteristics and usage patterns for hospital-led external prescription circulation and ...
Zhang Y, Feng Z, Li EF, Hu J.
europepmc +2 more sources
Rate-Associated Differences in Within-Session Motor-Inhibitory Performance: Exploratory Role of Affective Temperament. [PDF]
Life (Basel)Response inhibition is often summarized as a single individual score, although performance may change within a session as temporal demand and repeated exposure vary.
Puce L, Pretelli G, Trompetto C.
europepmc +2 more sources
Testing the integrated motivational-volitional model of suicidal behaviour among Danish adolescents in clinical psychiatric care: focus on volitional moderators. [PDF]
BJPsych OpenBackground The integrated motivational–volitional (IMV) model of suicidal behaviour has received growing empirical support, yet few studies have tested its core pathways (defeat → entrapment → suicidal ideation → suicide attempts) in clinical ...
Christiansen E +5 more
europepmc +2 more sources
Wald tests of singular hypotheses
Bernoulli, 2016 Motivated by the problem of testing tetrad constraints in factor analysis, we study the large-sample distribution of Wald statistics at parameter points at which the gradient of the tested constraint vanishes. When based on an asymptotically normal estimator, the Wald statistic converges to a rational function of a normal random vector.
Mathias Drton, Han Xiao
exaly +5 more sources
How to use χ2 test correctly——the Wald΄s test and the implementation of SAS software
Sichuan jingshen weisheng, 2021 The purpose of this article was to introduce the Wald΄s test and the SAS implementation. The specific contents involved the following nine aspects， namely the general Wald΄s test，the robust Wald΄s test，the constrained Wald΄s χ2 test，the generalized Wald ...
Hu Chunyan, Hu Liangping
doaj +1 more source
Statistical Inference for Odds Ratio of Two Proportions in Bilateral Correlated Data
Axioms, 2022 Bilateral correlated data frequently arise in medical clinical studies such as otolaryngology and ophthalmology. Based on an equal correlation coefficient model, this paper mainly aimed to investigate the statistical inference for the odds ratio of two ...
Zhiming Li, Changxing Ma
doaj +1 more source
Generalised Score and Wald Tests [PDF]
Advances in Decision Sciences, 2010 The generalised score and Wald tests are described and related to their nongeneralised versions. Two interesting applications are discussed. In the first a new test for the Behrens-Fisher problem is derived. The second is testing homogeneity of variances from multiple univariate normal populations.
Paul Rippon, John C. W. Rayner
openaire +2 more sources
Trials, 2022 Background The HEALing (Helping to End Addiction Long-termSM) Communities Study (HCS) is a multi-site parallel group cluster randomized wait-list comparison trial designed to evaluate the effect of the Communities That Heal (CTH) intervention compared to
Xiaoyu Tang +6 more
doaj +1 more source