نتایج جستجو برای: fisher exact test and t
تعداد نتایج: 17035620 فیلتر نتایج به سال:
abstract the first purpose of this study was to investigate the effect of consciousness-raising (c-r) activities on learning grammatical structures (simple present tense in this case) by iranian guidance school efl learners. the second one was to investigate the effect of gender on learning the simple present tense through c-r activities and tasks. finally, this study aimed to investigate the ...
We consider an exact factor model with the restriction of unobservable common stochastic trends imposed by non-stationary factors as considered by Zhou and Solberger (2012). Conditional on this, we propose a homogenous likelihood ratio test for unit roots in the idiosyncratic components. The likelihood approach has long been overlooked in this framework due to numerical burdens, and though part...
background: the hla class i molecules serve as ligands for both t cell receptors and killer cell immunoglobulin-like receptors (kirs). objective: we investigated the hlac and hla-bw4 alleles as well as kirs expression on cd56 positive lymphocytes to evaluate whether these genes and molecules could influence ankylosing spondylitis (as) susceptibility, alone or in combination. methods: we typed 4...
this study was an attempt to investigate and compare the effect of lexical inferencing and concept mapping on developing vocabulary retention of iranian language learners. sixty homogeneous students from different intact classes who were being taught as intermediate learners in sokhan english institute participated in this study. they were in different classes. a teacher made test as a pre-test...
Background and Objectives: Pedestrian injuries are a public health problem and one of the major victims of road traffic injuries are children. Education is one of the most important strategies to solve traffic problems. To achieve effective results, education should be defined on the basis of theories and models. The aim of this study was to evaluate the effect of PRECEDE-PROCEED based interven...
Oligohydramnios is frequently used to identify at risk fetuses. The purpose of this study was to assess adverse perinatal outcomes in oligohydramnios. Subjects comprised pregnant women diagnosed either with (590) or without (597) oligohydramnios who delivered after hospital admittance from 2000 to 2010 . Data, including the resuscitation of newborn, Apgar score at 5 min, NICU admission, death i...
Abstract In this paper an exact rejection algorithm for simulating paths of the coupled Wright–Fisher diffusion is introduced. The a family multivariate diffusions that have drifts depending on each other through coupling term and find applications in study networks interacting genes. proposed uses independent neutral as candidate proposals, which are only needed at finite number points. Once a...
having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...
Characteristic Parv4 IgG negative, n = 77 Parv4 IGg positive, n = 37 p-value Median age (IQR), y 7 (3–9) 7 (4–8) p = 0.87† Number of males (%) 38 (49) 12 (32) p = 0.21‡ Number with HIV (%) 65 (85) 25 (68) p = 0.05‡ Median CD4+ T cell percentage (IQR)§ 25 (18-30) 24 (16-30) p = 0.68‡ Median HIV viral load (IQR), copies/mL§ 120,000 (21,600–365,000) 52,000 (7,700–150,000) p = 0.13† Proportion with...
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