نتایج جستجو برای: point biserial correlation

تعداد نتایج: 892900  

2017
Nikhil Mahajan

This was a prospective study conducted in the Postgraduate Department of Pathology, ASCOMS Sidhra, Jammu over a period of one year. The aims of this study were to study the various morphological types of anaemia in patients of rheumatoid arthritis and also to study the correlation between serum ferritin and bone marrow iron stores in these patients. It was inferred from the study that the normo...

2014
Erden E. Ünlüer Arif Karagöz Haldun Akoğlu Serdar Bayata

INTRODUCTION The objective of this study was to determine whether bedside visual estimates of left ventricular systolic function (LVSF) by emergency physicians (EP) would agree with quantitative measurement of LVSF by the modified Simpson's method (MSM), as recommended by the American Society of Echocardiography. METHODS After limited focused training, 2 trained EPs performed bedside echocard...

2015
Syed Haris Ali Kenneth G. Ruit

BACKGROUND This study investigated the impact of addressing item writing flaws, testing at low cognitive level and non-functioning distractors (< 5 % selection frequency) in multiple-choice assessment in preclinical medical education. METHOD Multiple-choice questions with too high or too low difficulty (difficulty index < 0.4 or > 0.8) and insufficient discriminatory ability (point-biserial c...

Journal: :Korean journal of medical education 2012
Jong Cook Park Kwang Sig Kim

PURPOSE The reliability of test is determined by each items' characteristics. Item analysis is achieved by classical test theory and item response theory. The purpose of the study was to compare the discrimination indices with item response theory using the Rasch model. METHODS Thirty-one 4th-year medical school students participated in the clinical course written examination, which included ...

Journal: :مدیریت ورزشی 0
محمد احسانی دانشیار گروه تربیت بدنی، دانشگاه تربیت مدرس، تهران، ایران سید مرتضی عظیم زاده . استادیار گروه مدیریت ورزشی و رفتارحرکتی، دانشگاه فردوسی مشهد، مشهد، ایران اسدا... کردنائیج . دانشیار گروه مدیریت، دانشگاه تربیت مدرس، تهران، ایران هاشم کوزه چیان دانشیار گروه تربیت بدنی، دانشگاه تربیت مدرس، تهران، ایران براندا پیتز استاد دانشگاه جورجیااستیت ،امریکا

the aim of this study was to determine the relationship between entrepreneurial personality characteristics and small and medium-sized sport enterprises start-up (smses). the methodology of this study was descriptive-correlation. population consisted of small and medium-sized sport enterprises (n=1500) and their owners and/or managers were randomly selected as the sample (n=258). for data colle...

2015
Kristy J Rose Claire E Hiller Melissa Mandarakas Jacqueline Raymond Kathryn Refshauge Hylton Menz Mike Potter

results – “female gender (r = -.469, P < .001) and impaired balance (r = .495, P < .001).” Foot and ankle variables – “No significant gender differences (P <.05) were observed for age,” Variables associated with ankle instability – “Factors significantly associated with right FAI included female gender (r = -.469, P < .001),” “Factors associated with left FAI included female gender (r = .396, P...

Journal: :Open Journal of Statistics 2022

The objective of this article is to demonstrate with examples that the two-sided tie correction does not work well. This was developed by Cureton so Kendall’s tau-type and Spearman’s rho-type formulas for rank-biserial correlation yield same result when ties are present. However, a based on bracket achieves desired goal, which demonstrated algebraically checked three examples. On one hand, 10-e...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1387

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...

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