نتایج جستجو برای: parametric test zimmerman
تعداد نتایج: 866874 فیلتر نتایج به سال:
A topic of long-standing interest for university administrators and faculty is how to help rst-year college students succeed academically. On average, only 73.6% of college freshman return for their sophomore year (National Center for Higher Education Management Systems [NCHEMS], 2007). Although academic success in college requires some preexisting capabilities, these abilities do not always di...
We develop a consistent nonparametric test of common values in first-price auctions and apply it to British Columbia Timber Sales data. The test is based on the behavior of the CDF of bids near the reserve price. We show that the curvature of the CDF is drastically different under private values (PV) and common values (CV). We then show that the problem of discriminating between PV and CV is eq...
We propose a new nonparametric test for ordered alternative problem based on the rank difference between two observations from different groups. These groups are assumed to be independent from each other. The exact mean and variance of the test statistic under the null distribution are derived, and its asymptotic distribution is proven to be normal. Furthermore, an extensive power comparison be...
Functional magnetic resonance imaging (fMRI) was used to examine the pattern of cortical activity during a picture naming task. Subjects (n=12) had to covertly name either animals or furniture items. Functional scanning was performed using a conventional 1.5-Tesla whole-body MRI system. Images obtained during naming the two categories were compared using a non-parametric test. The study reveale...
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