نتایج جستجو برای: selected through stratified sampling method
تعداد نتایج: 3185509 فیلتر نتایج به سال:
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. ...
The present investigation was undertaken to study the Environmental Awareness of secondary school students who had gone through SEED Project. The sample of the study comprised 193 boys, 207 girls, 196 rural, 204 urban, 204 aided and 196 government (total400) secondary school students. For the selection of sample, stratified random sampling technique was employed. The data were analysed by using...
in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...
according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...
This paper develops a variance reduction technique for Monte Carlo simulations of path-dependent options driven by high-dimensional Gaussian vectors. The method combines importance sampling based on a change of drift with stratified sampling along a small number of key dimensions. The change of drift is selected through a large deviations analysis and is shown to be optimal in an asymptotic sen...
the current study aimed to investigate the perception of servant leadership situation and its relationship with social capial. the method is descriptive and the research project is of correlational type. the statistical population consists of all employees of the keshavarzi bank among which 196 were selected by stratified random sampling method. data were gathered through two standard questionn...
objective: the aim of present research is to investigate the effects of neurofeedback on cognitive function with emphasis on memory. method: this study is an experimental study. for this reason using a stratified sampling procedure sample of 30 subjects in 2 groups of experimental and placebo was selected. investigated subjects were assessed with the wechsler memory scale in two stages (pretest...
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