نتایج جستجو برای: pearson correlation coefficient test and fisher
تعداد نتایج: 16938624 فیلتر نتایج به سال:
OBJECTIVE The purpose of this article is to assess the differences, if any, in the values of carotid artery stiffness parameters between HIV-infected subjects without known cardiovascular disease (CVD) or carotid artery plaques and HIV-uninfected control subjects matched for sex, age, body mass index, and other CVD risk factors (i.e., hypertension, hypercholesterolemia, diabetes, and cigarette ...
For a bivariate data set the dependence structure can not only be measured globally, for example with the Bravais-Pearson correlation coefficient, but the dependence structure can also be analyzed locally. In this article the exploration of dependencies in the tails of the bivariate distribution is discussed. For this a graphical method which is called chi-plot and which was introduced by Fishe...
Objective of writing present article is to study relation between compensation situation and human resources system among staffs of Shiraz medical university. Statistic community ,is staffs of Shiraz medical university including( managers, experts, and employees),totally 800 persons which sample of research by way of random category with use of Cochran sampling formula 288 persons were selected...
PURPOSE The aim of this study was to compare the use of 3-dimensional (3D) laser scanning and cone-beam computed tomography (CBCT) as methods of root surface measurement. MATERIALS AND METHODS Thirty teeth (15 maxillary first premolars and 15 mandibular first premolars) from 8 patients who required extractions for orthodontic treatment were selected. Before extraction, pre-treatment CBCT imag...
OBJECTIVES The aim of the study is to determine the concordance between the PROCAM (Prospective Cardiovascular Münster) and Framingham scales in patients receiving highly active antiretroviral therapy (HAART). MATERIALS AND METHODS A cross sectional study was conducted in HIV-positive male population who use HAART in a national reference hospital located in Lima, Peru. To evaluate the concord...
Objectives: The present research was conducted to evaluate the psychometric properties (validity and reliability) of Persian version of strength and cardiovascular endurance items of functional fitness assessment test in Iranian elderly. Methods & Materials: The statistical sample consisted of 200 elderly (100 males and 100 females) with mean aged 68.05±5.21 years old that were selected by ran...
Available online at: http://npt.tums.ac.ir Background & Aim: Increasing students’ academic stress especially during taking final exams may result in sleep disorders, fatigue, poor academic performance and low functional efficiency. The aim of this study was to determine the relationship between sleep quality with fatigue severity and academic performance of nursing students. Methods & Materials...
The Chi-Square test (χ 2 test) is a family of tests based on a series of assumptions and is frequently used in the statistical analysis of experimental data. The aim of our paper was to present solutions to common problems when applying the Chi-square tests for testing goodness-of-fit, homogeneity and independence. The main characteristics of these three tests are presented along with various p...
Materials and methods Case-control study in with 85 patients with AIS and 25 healthy volunteers. AIS patients were classified into two groups determined by the curve mangitude): A (Cobb angle 25-40°) and B (Cobb angle >40°). Main outcomes were: respiratory muscle strength estimated by maximal inspiratory and expiratory preassures (MIP, MEP), peripherical muscle strength assessed in hands and lo...
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