نتایج جستجو برای: p value 0033
تعداد نتایج: 1874662 فیلتر نتایج به سال:
چکیده : هدف پژوهش حاضر، بررسی ارتباط میزان استفاده از تلفن همراه با وابستگی روانی به آن و سازگاری عاطفی ، اجتماعی و آموزشی دختران مدارس متوسطه استان قم می باشد . بدین منظور 360 دانش آموز به روش نمونه گیری خوشه ای چند مرحله ای انتخاب شدند . برای جمع آوری اطلاعات از مقیاس سازگاری دانش آموزان دبیرستانی ، ساخته ی (آ.ک.پ.شینها و ر.پ.سینها ،1993) ، و از مقیاس محقق ساخته برای اندازه گیری میزان استفاد...
For the one-sided hypothesis testing problem it is shown that it is possible to reconcile Bayesian evidence against H0, expressed in terms of the posterior probability that Ho is true, with frequentist evidence against H0, expressed in terms of the p value. In fact, for many classes of prior distributions it is shown that the infimum of the Bayesian posterior probability of Ho is equal to the p...
BACKGROUND Power analysis is a critical aspect of the design of experiments to detect an effect of a given size. When multiple hypotheses are tested simultaneously, multiplicity adjustments to p-values should be taken into account in power analysis. There are a limited number of studies on power analysis in multiple testing procedures. For some methods, the theoretical analysis is difficult and...
Results favoring one treatment over another in a randomized clinical trial can be explained only if the favored treatment really is superior or the apparent advantage enjoyed by the treatment is due solely to the working of chance. Since chance produces very small advantages often but large differences rarely, the larger the effect seen in the trial the less plausible chance assignment alone ca...
In 10 patients with previously untreated essential thrombocythemia (ET), by using "'In-labeled platelets and megakaryocyte morphometry, the relation between platelet production rate and bone marrow megakaryocytes was evaluated before and during a-2b-interferon (IFN) therapy. A highly significant decrease in platelet count occurred during IFN therapy; the platelet counts, at baseline and after 2...
Consider an experiment in which 10 subjects receive a placebo, and another 10 receive an experimental diuretic. After 8 h, the average urine output in the placebo group is 769 mL, versus 814 mL in the diuretic group—a difference of 45 mL (Figure 1). How do we know if that difference means the drug works and is not just a result of chance? of 45 mL in the average urine output between groups unde...
The misinterpretation and misuse of p-value have been increasing for decades. In March 2016, the American Statistical Association released a statement to warn about the use and interpretation of p-value. In this study, we provided a definition and discussion of pvalue and emphasized the importance of its accurate interpretation.
Y. Maeda,1,* H. Sakai,2,3 K. Fujita,4 M. B. Greenfield,5 K. Hatanaka,4 M. Hatano,2 J. Kamiya,6 T. Kawabata,1 H. Kuboki,2 H. Okamura,4 J. Rapaport,7 T. Saito,2 Y. Sakemi,4,† M. Sasano,2 K. Sekiguchi,3 Y. Shimizu,4,‡ K. Suda,1,§ Y. Tameshige,4 A. Tamii,4 T. Wakasa,8 K. Yako,2 J. Blomgren,9 P. Mermod,9 A. Öhrn,9 M. Österlund,9 H. Witała,10 A. Deltuva,11 A. C. Fonseca,11 P. U. Sauer,12 W. Glöckle,1...
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