نتایج جستجو برای: sample and independent t
تعداد نتایج: 17003491 فیلتر نتایج به سال:
abstract when in administrative law the matter of administrative offences are raised, these offences would have legal nature if they are force able, some of these offences are related to administrative law, where as some other pelts are common in civil or penal law. the current research intends not only to consider the concept and foundation of administrative execution rules but also compares...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
tourism , today as one of the ways to make money, create jobs , and social and political interactions is considered. this paper aims to examine the strengths and weaknesses of tourism development in mahmoud abad ( mazandaran ). the research method in this study is " descriptive - analytical " and to collection of data used field methods such as questionnaires and documentation - library. the sa...
within communicative, interactive, and learner-centered framework of language teaching and learning, students need to learn four skills of listening, speaking, reading, and writing for their educational success. but of all the language skills, reading enjoys a paramount significance in so many second or foreign language academic contexts. in spite of its importance, language learners still have...
چکیده مقدمه و اهداف: حیوان گزیدگی انسان از شایعترین مشکلات بهداشت عمومی در دنیا است که اهمیت آن به دلایل شیوع بالا، عوارض آن و مهمتر از همه به دلیل خطر انتقال بیماری هاری می باشد. این مطالعه با هدف طراحی و تدوین بسته آموزشی پیشگیری و ارزشیابی تاثیر این بسته بر دانش رابطین بهداشت شهری فریمان انجام شد. روش کار: در مرحله اول، برای تدوین بسته آموزشی، مطالعه توصیفی مقطعی انجام شد. جامعه پژوهش این ...
abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...
this study was intended to analyze the listening tapescripts of the elementary and pre-intermediate levels of total english textbooks from the pragmatic dimension of language functions and speech acts in order to see whether the listening tasks are pragmatically informative or not. for this purpose, 8 conversations from the two books were selected randomly, and then, the two pragmatic models of...
some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...
این تحقیق به بررسی تاثیر اضطراب خواندن بر توانایی خواندن, استراتژیهایی خواندن و جنسیت زبان اموزان پرداخته است. در این رابطه برای جمع اوری اطلاعات دو پرسشنامه flras ,maq و ازمون خواندنtoefl در میان شصت زبان اموز(سی زن و سی مرد) از دو مقطع مختلف پیش از متوسط پیشرفته که در یک موسسه زبان خصوصی تحصیل می کردند توزیع گردید. هدف یافتن میزان همبستگی بین متغیرهای : اضطراب خواندن, توانایی خواندن ,استراتژی...
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