نتایج جستجو برای: researcher for validity
تعداد نتایج: 10384930 فیلتر نتایج به سال:
Introduction In epidemiologic research, it is essential to avoid bias, to control confounding and to undertake accurate replication. Bias, confounding and random variation/chance are the non-causal reasons for an association between an exposure and outcome. These major threats to internal validity of a study should always be considered as alternative explanations in the interpretation. Bias is ...
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
background: despite progression of knowledge of nursing researcher about importance of psychometric principles of instruments of studies but it seems that this subject is not used correctly in nursing studies. this study is designed to critically assess the validity and reliability of instruments applied in studies published in iranian nursing journals methods: this study is a critical review o...
abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...
abstract the main objective of the study was to develop and validate a questionnaire to measure entrepreneurial behavior. statistical population (n = 1497) of the research were all humanities graduate students at the science and research branch of islamic azad university, tehran in 2011, of whom 500 individuals were selected and completed a researcher compiled entrepreneurial behavior questionn...
today, in addition to physical capital, social capital, entrepreneurship is the determining factor. therefore, this study was designed to investigate the influence of social capital on entrepreneurship; to evaluate the impact of social capital on entrepreneurial innovation is the role of mediator. the study had a sample of 130 female entrepreneurs ilam through simple random sampling has been do...
This study examines a method of generating comprehensive profiling information for a researcher analysis service. In addition to basic and performance-based information about researchers necessary to generate profiling information, we introduce researcher performance index models for researcher analysis service. The models can that measure qualitative and quantitative performance, researcher in...
abstractof two mcall programs introducing 100 vocabulary items through two im the researcher of the present study was intrigued to compare the effects age modalities (pictures and streaming video) with those of a conventional method (teacher instruction) in an efl context. she set out to investigate whether such multimedia environments could provide a more effective environment for vocabulary...
While many studies have assessed IS researcher-production, most have focused on either ranking IS journals or assessing prolific researchers using a restricted time frame and a small basket of journals (i.e., those journals selected for sampling). We found no research that has assessed the IS specificity of journals (i.e., the suitability of journals for publishing IS research) nor any that e...
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