نتایج جستجو برای: multicolinearity

تعداد نتایج: 45  

2003
Diego Ontiveros

Aim To assess the impact of certain climatic variables on the breeding success of some populations of Bonelli’s eagle (Hieraaetus fasciatus V. 1822) throughout its latitudinal distribution range, in order to account for recent and differential declines in populations. Location Western Mediterranean, from southern Morocco to southern France. Methods Seven populations were considered for the lati...

Journal: :Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists 2011
John E Meyers Marie Volbrecht Bradley N Axelrod Lorrie Reinsch-Boothby

A sample of 314 consecutive clinical and forensic referrals with mild traumatic brain injury was evaluated using the Meyers Neuropsychological Battery (MNB). A comparison was made of the test performance and performance on the embedded Symptom Validity Tests (SVTs) with a control for multicolinearity utilized. Using the nine embedded SVTs in the MNB, the incidence of poor effort fell at 26% of ...

Journal: :Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology 2000
S M Kymes D E Bruns L J Shaw K N Gillespie J W Fletcher

BACKGROUND Accurate diagnosis of coronary heart disease has the potential to contribute substantially to cost-effective delivery of health services. Recent work by Fleischmann et al (JAMA 1998;280:913-20) represents an effort to summarize the accuracy of exercise echocardiography and exercise single photon emission computed tomography (SPECT). METHODS AND RESULTS A critique of the previous wo...

2014
Joo Youn Seo Mi Kyung Kim Bo Youl Choi Yu-Mi Kim Sung-Il Cho Jinho Shin

Microalbuminuria is a marker of generalized endothelial dysfunction resulting from arterial stiffness or insulin resistance, and brachial-ankle pulse wave velocity (baPWV) is a good measure of arterial stiffness. We aimed to investigate whether elevated baPWV is independently associated with microalbuminuria. This study included 1,648 individuals aged over 40 who participated in the baseline Mu...

Journal: :BMC Proceedings 2007
Hae-Won Uh Bart JA Mertens Henk Jan van der Wijk Hein Putter Hans C van Houwelingen Jeanine J Houwing-Duistermaat

Our aim is to develop methods for identifying a (causal) variant or variants from a dense panel of single-nucleotide polymorphisms (SNPs) that are genotyped on the evidence of previous studies. Because a large number of SNPs are in close proximity to each other, the magnitude of linkage disequilibrium (LD) plays an important role. Namely, highly correlated SNPs may hamper standard methods such ...

ژورنال: پژوهش های مشاوره 2018
مصطفوی, محمد, نسیمی, منیره, هلاکویی, هدی,

The study aims at investigating the relationship between the cognitive constructs of those who crave for marriage and those who elude marriage and psychological well-being and meaning of life. This is a descriptive research conducted using the correlational method. The statistical sample includes 106 people either eluding or craving for marriage, who were selected by simple random sampling meth...

Journal: :Nucleation and Atmospheric Aerosols 2021

In regression model, there are several assumptions which have to be fulfilled, one of is the absence multicollinearity between its independent variables. If occurs, parameter estimation model using method least squares results in unbiased estimators, and even estimators likely large variance. Such variance causes hypothesis testing towards tend accept H0, meaning that coefficient insignificant....

Journal: :BMC Proceedings 2007
Nora L Nock Emma K Larkin Nathan J Morris Yali Li Catherine M Stein

Rheumatoid arthritis is a complex disease that appears to involve multiple genetic and environmental factors. Using the Genetic Analysis Workshop 15 simulated rheumatoid arthritis data and the structural equation modeling framework, we tested hypothesized "causal" rheumatoid arthritis model(s) by employing a novel latent gene construct approach that models individual genes as latent variables d...

Journal: :Int. J. Hum. Comput. Interaction 2004
Ulla Bunz

The purpose of this research was to develop an instrument to assess people’s fluency with the computer, e-mail, and the Web (CEW fluency). Such an instrument, tapping into digital divides, could fill the existing void that exists between previously developed computer literacy or experience scales and the ever faster development of Internet technology. The research was conducted in 2 stages. The...

2012
GURMANIK KAUR AJAT SHATRU ARORA VIJENDER KUMAR JAIN

Arterial Blood pressure (BP) is influenced by numerous factors. Guidelines on measurement of BP contain recommendations on the position of the back by advising that the subject should sit with back supported. The objectives of this work are: i) to determine whether unsupported back during BP measurement in sitting position has significant effect on BP, ii) to determine the relationship between ...

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