نتایج جستجو برای: who were selected by disproportional stratified sampling method

تعداد نتایج: 8972756  

2006
Hongsuk Yang

We look at the benefits of using a kind of quasi-random numbers to obtain more accurate results for a given number of simulation runs. We explore a sampling method with enhanced independence in multidimensional simulations by combining the ideas of stratified sampling and Latin Hypercube sampling. We test the new sampling method by comparing it with traditional stratified sampling and Latin Hyp...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1390

teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده زبانهای خارجی 1391

abstract this study tried to investigate whether there was any significant relationship between technical translation quality of the senior english translation students and their levels of verbal-linguistic, visual-spatial and interpersonal intelligences. in order to investigate the research questions, the researcher selected a hundred senior english translation students from three universitie...

Journal: :تحقیقات نظام سلامت 0
منصوره دهقانی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران حسن هاشمی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران طیبه عابدی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران نرگس شمس الدینی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، شیراز، ایران عباس خدابخشی استادیار مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران رضا قاسمی کارشناس پرستاری، معاونت دانشجویی و فرهنگی دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

abstract background: solid waste generated by human activities. today, solid waste has changed a ‎lot‏ ‏with changing lifestyles. the main aim of this study ‎was to evaluate the knowledge, attitude and behavior of students in ‎shiraz university of medical sciences about the recycling of solid ‎waste. methods: this analytical -descriptive cross- sectional study was ‎done on 383 students of shira...

پایان نامه :موسسه آموزش عالی غیردولتی رودکی تنکابن - دانشکده ادبیات و زبانهای خارجی 1383

abstract this study examined the relationship between noticing pronunciation and the improvement pronunciation by administering a 50 item story, as proficiency- test in order to investigate the effectiveness of noticing pronunciation on the improvement of pronunciation. accordingly 60 qualified students were selected and assigned to the two groups of experimental and control randomly, each gr...

Journal: :iranian red crescent medical journal 0
azam baheiraei department of reproductive health, school of nursing and midwifery, tehran university of medical sciences, tehran, ir iran; community based participatory research center, iranian institute for reduction of high-risk behaviors, tehran university of medical sciences, tehran, ir iran elham khoori department of reproductive health, school of nursing and midwifery, tehran university of medical sciences, tehran, ir iran; department of midwifery, golestan university of medical sciences, gorgan, ir iran. tel: +98-1714426900, fax:+98-1714425171 fazlollah ahmadi department of nursing, faculty of medical sciences, tarbiat modares university, tehran, ir iran abbas rahimi foroushani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran fazlollah ghofranipour department of health education, school of medical sciences, tarbiat modares university, tehran, ir iran

results: the findings of this mixed methods sequential explanatory study are expected to provide unique information about the health concerns of iranian adolescents and their sources of information, which to date have received little attention. conclusions: these data will provide a rich source of information that can be used by intervention programs, health professionals and policy makers in a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

this study investigates the relationships between iranian efl teachers’ perfectionism, burnout and their teaching style preferences, and also the difference between male and female efl teachers and their teaching style preferences. to this end, a sample of 99 efl teachers (46 males and 53 females), who had years of teaching experience, were selected. the measurement scales used in this study we...

2013
Li Qiuying Luo Lei

Software reliability testing provided the necessary guarantee for improving software reliability level and estimation. The traditional method for generating software reliability test cases could be seen as a simple random sampling, which was randomly choosen according to the operational profile defined by Musa. The stratified sampling was well known as a complex but more accurate sampling appro...

2003
Grace X. Ma Steve E. Shive Jamil Toubbeh Yin Tan Shanyang Zhao

This study sought to identify the predictive power of social influences on smoking behavior among Asian American adults. A cross-sectional self-report survey method and stratified-cluster proportional sampling technique was used. The survey was conducted at the 26 randomly selected Asian American community organization locations in the Delaware Valley region. A sample of 1374 was recruited from...

2016
Alka Ahuja

Objective: A study was conducted to ascertain the impact of dysmenorrhea on quality life of adolescent girls of Chandigarh. Methods: Multistage stratified sampling was done and 5 sectors, 5 villages, 5 slums were selected by lottery method. Then from each area 20 respondents were selected by simple random sampling. A Self-designed interview schedule was used to collect data from 300 Adolescent ...

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