نتایج جستجو برای: dependent t test
تعداد نتایج: 2019907 فیلتر نتایج به سال:
چکیده آب و هوا از مهمترین عوامل موثر بر سلامت انسان است. ساختمان و عملکرد بدن انسان به گونهایی است که از آب و هوا تاثیر پذیرفته و نسبت به تغییر پارامترهای اقلیمی واکنش نشان میدهد. در این پژوهش تاثیر پارامترهای اقلیمی بر مرگ و میر جمعیت شهر اصفهان مورد بررسی قرار گرفته است. به این منظور آمار مرگ و میرهای مربوط به سه بیماری قلبی – عروقی، تنفسی و سکته مغزی برای دوره آماری (1389 -1384) از ...
the major aim of this study was to investigate the relationship between iq, eq and test format in the light of test fairness considerations. this study took this relationship into account to see if people with different eq and iq performed differently on different test formats. to this end, 90 advanced learners of english form college of ferdowsi university of mashhad were chosen. they were ask...
The application of the flipped learning model can improve student outcomes. This study aims to analyze effectiveness assisted by Google Classroom media in improving outcomes and independence solving social studies questions. research is quantitative with quasi-experiments. population this were all students an elementary school. While sample 40 class V at one schools. instruments used test quest...
this article aims to provide a simple robust method to test the parameters of a normal population by using the new diagnostic tool called the “forward search” (fs) method. the most commonly used procedures to test the mean and variance of a normal distribution are student’s t test and chi-square test, respectively. these tests suffer from the presence of outliers. we introduce the fs version of...
Performance-based outcomes such as the T-Test, Edgren Side Step Test (ESST), and Illinois Agility Test (IAT) have been used to assess agility in athletes and nonathletes; however, the reliability and validity of these tests have not been established. The purpose of this study was to establish the reliability and convergent construct validity of the ESST, T-Test, and IAT in young, nondisabled, p...
the aim of the present study was to investigate the effect of 8 weeks of plyometric, strength and complex (plyometric-strength) training on the agility of young free style wrestler in ilam city. this study was semi-experiment and its statistical population consisted of 328young free style wrestler of ilam city. for this purpose, 40 subjects were randomly selected and divided into four groups (e...
BACKGROUND Methamphetamine is a neurotoxic agent. Its chronic abuse may result in cognitive impairment with negative consequences for patients' treatment and rehabilitation. The aim of the study was to compare Wisconsin Card Sorting Test profiles of Czech subjects dependent on methamphetamine with healthy individuals. SUBJECTS AND METHODS Forty-three hospitalized Czech Caucasian patients incl...
The H-T-P (freehand drawing of House, Tree, and Person) is a technique designed to aid the clinician in obtaining information concerning the sensitivity, maturity, and integration of a subject's personality, and the interaction of that personality with its environment (both specific and general). The H-T-P is a two-phased approach to the personality. The first phase is non-verbal, creative, alm...
Testing linear combinations of normal group means with unequal variances and possibly unequal samples sizes using a t-statistic is a well known problem for which the effective degrees of freedom are unknown. ? and ? set forth their approximations based on the ratio of combinations of fourth moments, and their methodology remains the de facto standard. We propose a new approach that extends thei...
Statistical tests are very important in biomedical research.1 Several factors play a role in selecting the most appropriate statistical test.2 The misuse or inaccurate use of a statistical test may navigate the research in the wrong direction, and hence incorrect conclusions. Because it is probably the most commonly used statistical test, Student’s t-test is considered “the bread and butter” of...
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