نتایج جستجو برای: آزمون t test
تعداد نتایج: 1524276 فیلتر نتایج به سال:
A prospective study was conducted at Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria, between 3 January and 31May 2004, to compare the accuracy of clinical and ultrasonographic estimation of foetal weight at term. One hundred pregnant women who fulfilled the inclusion criteria had their foetal weight estimated independently using clinical and ultrasonographic methods. Acc...
BACKGROUND Learning in small group tutorials is appreciated by students and effective in the acquisition of clinical problem-solving skills but poses financial and resource challenges. Interactive seminars, which accommodate large groups, might be an alternative. This study examines the educational effectiveness of small group tutorials and interactive seminars and students' preferences for and...
adsorption isotherm modeling of phenol onto natural soils – applicability of various isotherm models
liquid-phases adsorption equilibrium of phenol onto two naturally available soils namely kalathur soil (kr) and adhanur soil (ar) were studied. the experimental data were analyzed using fourteen isotherm models, ranging from single-parametric model to multi-parametric models (up to 5 parameters) of the system. results show that in general the accuracy of models to fit experimental data improves...
This study examined the effects of gender; time spent on internet browsing, participation in sports activities and medium of instructions on mathematics achievement of class IX students of South-East Bihar. The study consists of 975 male and 969 female students of thirty-six schools of South-East Bihar. The mathematics achievement test and personal background assessment questionnaire were used ...
this research was conducted to examine the effect of a concurrent training on rest level of leptin of plasma and some hormonal factors in non-athlete subjects. the research population included non-athlete men who didn’t participate in any organized sport activities. 30 men were chosen voluntarily among the above-mentioned population and were divided into 2 groups: experimental (15 subjects) an...
Aims / Objectives: To introduce a statistical test, which is mixture of the one-sample t-test and Wilcoxon signed-rank test depends on sample kurtosis, using data from symmetric univariate distribution with finite variance.
 Study Approach: Computer simulation coverage probabilities power calculations either or based software R.
 Methodology: Data are generated differing sizes Normal,...
به گواه یافته های تحقیقات انجام شده تاثیر فرصت تمهید بر پیچیدگی و روانی گفتار با تاثیر مبادله ای بین صحت و روانی و یا بین صحت و پیچیدگی گفتار همراه است. ایجاد تعادل بین صحت دستوری و روانی گفتار دغدغه ای مهم در محیطهایی است که انگلیسی بعنوان یک زبان خارجی تدریس میشود. لذا تحقیق حاضر به بررسی تاثیر آموزش راهبردهای روانی گفتار در چارچوب فرصت تمهید حین انجام تکلیف و مقایسه آن با آموزش راهبردهای صحت...
چکیده ندارد.
از آنجا که تغییرات فصلی سطح پوشش برف در مناطق کوهستانی به عنوان یک عامل مهم اقتصادی بیان میشود؛ در پژوهش حاضر روند ارتفاع برف و سریهای دمایی (متوسط دما، دمای کمینه و کمینه مطلق دما) ایستگاه کوهرنگ در مقیاس سالانه و فصلی طی دوره آماری 1390-1369 بررسی شد. ابتدا سنجش بهنجاری سریهای دما و ارتفاع برف سالانه و فصلی با استفاده از آزمون رایان– جونیر انجام شد. سپس روند پارامترهای مذکور با توجه به نوع...
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