نتایج جستجو برای: p value
تعداد نتایج: 1874264 فیلتر نتایج به سال:
The paper introduces a general approach to constructing mixture-based gatekeeping procedures in multiplicity problems with two or more families of hypotheses. Mixture procedures serve as extensions of and overcome limitations of some previous gatekeeping approaches such as parallel gatekeeping and tree-structured gatekeeping. This paper offers a general theory of mixture procedures constructed ...
Empirical research has shown performance improvement of many different technological domains occurs exponentially but with widely varying improvement rates. What causes some technologies to improve faster than others do? Previous quantitative modeling research has identified artifact interactions, where a design change in one component influences others, as an important determinant of improveme...
AIM This study was conducted to determine whether the standards of dental maturation given by Demirjian et al. are applicable to North Indian children and to assess the relationship between dental age and chronological age. METHODS In this study OPGs of 100 females of 8-14 years were taken, and dental age was calculated according to the Demirjian method. Chronological age was recorded and c...
This paper studies the Bahadur efficiency of empirical likelihood for testing moment condition models. It is shown that under mild regularity conditions, the empirical likelihood overidentifying restriction test is Bahadur efficient, i.e., its p-value attains the fastest convergence rate under each fixed alternative hypothesis. Analogous results are derived for parameter hypothesis testing and ...
Functional connectivity between two voxels or regions of voxels can be measured by the correlation between voxel measurements from either PET CBF or BOLD fMRI images in 3D. We propose to look at the entire 6D matrix of correlations between all voxels and search for 6D local maxima. The main result is a new theoretical formula based on random field theory for the p-value of these local maxima, w...
We present a loophole-free violation of local realism using entangled photon pairs. We ensure that all relevant events in our Bell test are spacelike separated by placing the parties far enough apart and by using fast random number generators and high-speed polarization measurements. A high-quality polarization-entangled source of photons, combined with high-efficiency, low-noise, single-photon...
In a clinical trial with an active treatment and a placebo the situation may occur that two (or even more) primary endpoints may be necessary to describe the active treatment's benefit. The focus of our interest is a more specific situation with two primary endpoints in which superiority in one of them would suffice given that non-inferiority is observed in the other. Several proposals exist in...
مقدمه: اختلالات خوردن یکی از شایعترین اختلالات روانپزشکی است که شیوع آن در جامعه رو به افزایش است. اختلالات خوردن باعث عوارض و مشکلات جسمی و روانی در افراد دارای اختلال خوردن شده است، از جمله این اختلالات میتوان اختلال در سیستم گوارشی و اندوکرین واختلال خلقی را ذکر کرد. با توجه به همراهی زیاد اختلالات خوردن و اختلالات خلقی برآنیم تا با شناسایی اختلالات دو قطبی و افسردگی در افراد دارای اختلال خو...
Because of the strong overreliance on p values in scientific literature, some researchers have argued that we need to move beyond and embrace practical alternatives. When proposing alternatives statisticians often commit “statistician’s fallacy,” whereby they declare which statistic really “want know.” Instead telling what want know, should teach questions can ask. In situations, answer questio...
Many multiple testing procedures make use of the p-values from the individual pairs of hypothesis tests, and are valid if the p-value statistics are independent and uniformly distributed under the null hypotheses. However, it has recently been shown that these types of multiple testing procedures are inefficient since such p-values do not depend upon all of the available data. This paper provid...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید