نتایج جستجو برای: common item equating
تعداد نتایج: 729982 فیلتر نتایج به سال:
Combination of data sets from different objects (for example, from two groups of healthy volunteers from the same population) that were measured on a common set of variables (for example, metabolites or peptides) is desirable for statistical analysis in "omics" studies because it increases power. However, this type of combination is not directly possible if nonbiological systematic differences ...
Along with the increasing popularity of item response theory (IRT) in testing practices, it is important to check a fundamental assumption of most of the popular IRT models, which is unidimensionality. Nevertheless, it is hard for educational and psychological tests to be strictly unidimensional. The tests studied in this paper are from a standardized high-stake testing program. They feature po...
در این پایان نامه، کوهمولوژی گروههای توپولوژیک با ضرایب ناآبلی را تعریف می کنیم. هرگاه ضرایب آبلی باشند، این تعریف با کوهمولوژی آبلی گروههای توپولوژیک منطبق است. با استفاده از مفهوم دومدولهای توپولوژیک متقاطع جزیی یک تعریف جدید از اولین کوهمولوژی ناآبلی گروههای توپولوژیک به دست می آوریم. با معرفی مفهوم هسته سادکی پروژکتیو استاندارد از یک گروه توپولوژیک، دومین کوهمولوژی ناآبلی گروههای ...
von Davier, Holland and Thayer (2004) laid out a five-step framework of test equating which can be applied to various data collection designs and equating methods. In the continuization step, they present an adjusted Gaussian kernel method which preserves the first two moments. This paper proposes an alternative continuization method which directly uses the log-linear function from the smoothin...
Email [email protected] Abstract Massive open online courses (MOOCs) are playing an increasingly important role in higher education around the world, but despite their popularity, the measurement of student learning in these courses is hampered by cheating and other problems that lead to unfair evaluation of student learning. In this paper, we describe a framework for maintaining test securi...
For a test that consists of dichotomously-scored items, several approaches have been reported in the literature for estimating decision consistency based on a single administration of a test. It is relatively straightforward to extend these approaches to a test that consists of polytomously-scored items with the same number of score categories for each item. Single-administration decisionconsis...
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