نتایج جستجو برای: standard deviation and analysis statistics paired
تعداد نتایج: 17313574 فیلتر نتایج به سال:
objective: access to demand quality of digital library services at university of tehran from the perspective of users (faculty members, library experts and student) by the digiqual model. research methodology: as for the objective, this research is an applied research and its nature is survey –analytic. the statistical population of this research is the group of users who are member of the digi...
Background and Objectives: Numerous studies associated with manager nurses’ conduct and empowerment of nursing staff have revealed that the managers can influence their personnel and enhance job satisfaction, commitment, responsibitity, efficiency, and service quality by impressive behavior. The goal of this study is to evaluate managerial skills retraining of manager nurses on empowerment of n...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
abstract background and purpose:the major motivation behind all human communities’ efforts and transformation is to promote and advance human beings health. this study aimed at to compare the effect of a healthy lifestyle electronic education on the knowledge and satisfaction of the elderly. materials and methods:this semi-experimental method has been done along with pre- and post-test for peop...
تعریف مساله،اهداف و سوالات تحقیق: در زبان محاوره ایی، شکل یک شی را با اشیایی که از قبل در ذهن دارند می شناسند. به عنوان مثال اکثر مردم نقشه ایتالیا را شبیه چکمه و نقشه ایران را شکلی شبیه به گربه می دانند. در واقع تعریف شکل به این گونه، مفهومی کیفی را دنبال می کند. اما اگر یک محقق آماری علاقه مند به ارزیابی کمی اشکال براساس ساختار هندسی آنها باشد نیازمند تعریفی مناسبتر می باشد که به نوعی مفاهیم...
BACKGROUND When conducting a meta-analysis of a continuous outcome, estimated means and standard deviations from the selected studies are required in order to obtain an overall estimate of the mean effect and its confidence interval. If these quantities are not directly reported in the publications, they must be estimated from other reported summary statistics, such as the median, the minimum, ...
Suppose the random vector (X,Y ) satisfies the regression model Y = m(X) + σ(X)ε, where m(·) and σ(·) are unknown location and scale functions and ε is independent of X. The response Y is subject to random right censoring and the covariate X is completely observed. A new test for a specific parametric form of any scale function σ(·) (including the standard deviation function) is proposed. Its s...
adolescents and young adults and their problems is an issue whose importance is obvious to anyone because youth are the founders of our countrys future and requires proper planning to be on leisure. given the importance of leisure,this study to investigate needs assessment and planning how adolescents and young adults spend their leisure time in urban of case study of high school girls and boys...
The article presents an analysis of experimental work. purpose the is to analyze effect special self-assessment instruction on self-esteem level primary school students with and without needs. study’s participants were inclusive classes two state schools in Almaty (Kazakhstan). A total 283 participated study, 17 whom educational needs (SEN), 266 – SEN. study was conducted form a quasi-experimen...
this study was an attempt to investigate the effect of subtitling on vocabulary learning among iranian intermediate students. to find the homogeneity of the groups, tofel test was administered to student in kish mehr institute in garmsar. after analyzing the data, 60 participants (female students) who scored within the range of one standard deviation above and below the mean, were selected as h...
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