نتایج جستجو برای: statistical tests of t

تعداد نتایج: 21288914  

Journal: :Evidence Based Nursing 2014

Journal: :IEEE Transactions on Signal Processing 2004

Journal: :Astronomy and Astrophysics Supplement Series 1999

Journal: :Communications in Numerical Analysis 2012

Journal: :international journal of endocrinology and metabolism 0
asghar ghasemi endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, ir iran +98-2122409309, [email protected] saleh zahediasl endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, ir iran +98-2122409309, [email protected]; endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, ir iran +98-2122409309, [email protected]

statistical errors are common in scientific literature and about 50% of the published articles have at least one error. the assumption of normality needs to be checked for many statistical procedures, namely parametric tests, because their validity depends on it. the aim of this commentary is to overview checking for normality in statistical analysis using spss.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

abstract: postmethod is a newly developed pedagogy which as an alternative to method rejects the notion of good or bad methods and the concept of best method that can be generalized and appropriate for all contexts. instead, it treats each context as unique and one of a kind which cant be compared with other cases. this study is a postmethod-oriented one which investigates whether and how far t...

2008
Kok-Yong Seng Robb W. Glenny David K. Madtes Mary E. Spilker Paolo Vicini Sina A. Gharib

Currently, statistical techniques for analysis of microarray-generated data sets have deficiencies due to limited understanding of errors inherent in the data. A generalized likelihood ratio (GLR) test based on an error model has been recently proposed to identify differentially expressed genes from microarray experiments. However, the use of different error structures under the GLR test has no...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

plagiarism in esl/efl learning contexts has been established as a dynamic and multi-layered phenomenon and has become a topic engaging many researchers in a heated debate in recent years. comparisons of student-generated texts with their source texts have shown that students rely on source texts in their writings and copying is a major strategy used by both l1 and l2 writers. in our country a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1392

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

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