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131.
David M. Levine David F. Stephan 《Decision Sciences Journal of Innovative Education》2011,9(3):395-400
Introductory business statistics students often receive little guidance on how to apply the methods they learn to further business objectives they may one day face. And those students may fail to see the continuity among the topics taught in an introductory course if they learn those methods outside a context that provides a unifying framework. The DCOVA problem‐solving framework that presents discrete steps to define, collect, organize, visualize, and analyze data addresses these concerns while helping to enhance the perceived value of taking statistics courses. 相似文献
132.
Lawrenz Frances Gravemeijer Koeno Stephan Michelle 《International Journal of Science and Mathematics Education》2017,15(1):125-128
International Journal of Science and Mathematics Education - 相似文献
133.
Schillinger Frieder L. Mosbacher Jochen A. Brunner Clemens Vogel Stephan E. Grabner Roland H. 《Educational Psychology Review》2021,33(4):1887-1906
Educational Psychology Review - The inverse relationship between test anxiety and test performance is commonly explained by test-anxious students’ tendency to worry about a test and the... 相似文献
134.
135.
Skedsmo Guri Huber Stephan Gerhard 《Educational Assessment, Evaluation and Accountability》2021,33(4):587-589
Educational Assessment, Evaluation and Accountability - 相似文献
136.
Huber Stephan Gerhard Helm Christoph 《Educational Assessment, Evaluation and Accountability》2020,32(2):237-270
Educational Assessment, Evaluation and Accountability - The crisis caused by the COVID-19 virus has far-reaching effects in the field of education, as schools were closed in March 2020 in many... 相似文献
137.
Suzan Verberne Hans van Halteren Daphne Theijssen Stephan Raaijmakers Lou Boves 《Information Retrieval》2011,14(2):107-132
In this paper, we evaluate a number of machine learning techniques for the task of ranking answers to why-questions. We use TF-IDF together with a set of 36 linguistically motivated features that characterize questions and answers.
We experiment with a number of machine learning techniques (among which several classifiers and regression techniques, Ranking
SVM and SVM
map
) in various settings. The purpose of the experiments is to assess how the different machine learning approaches can cope
with our highly imbalanced binary relevance data, with and without hyperparameter tuning. We find that with all machine learning
techniques, we can obtain an MRR score that is significantly above the TF-IDF baseline of 0.25 and not significantly lower
than the best score of 0.35. We provide an in-depth analysis of the effect of data imbalance and hyperparameter tuning, and
we relate our findings to previous research on learning to rank for Information Retrieval. 相似文献
138.
Stephan Whitaker 《Economics of Education Review》2011,30(2):228-246
This analysis examines whether the legalization of abortion changed high school graduation rates among the children selected into birth. Unless women in all socio-economic circum-stances sought abortions to the same extent, increased use of abortion must have changed the distribution of child development inputs. I find that higher abortion ratios are associated with higher graduation rates for black males, but not other demographic groups. In a pooled analysis, I find that abortion has a significant negative impact on graduation rates. The effect disappears when I control for ethnicity. The cohorts born between 1965 and 1979 contained falling shares of whites, who have relatively high graduation rates. Regression results indicate abortion ratios are linked with the fertility differences between ethnicities, which suggests this is a channel of influence. Overall, the relationship between abortion exposure and educational attainment is small. A standard deviation change in abortion might move the national graduation rate by less than three-tenths of a percentage point. 相似文献
139.
140.
Elizabeth Stephan 《College & Undergraduate Libraries》2013,20(4):59-72
ABSTRACT It is no secret that the nature of reference is changing. Users no longer have to go to the library to find the resources needed for their research. The library is becoming a place to study more than a place to do research. Business students at the University of Mississippi are no different. With nice computer labs, a big building, and atriums for relaxing, there was little need for them to leave the School of Business Administration. How do you reach users who won't come to the library? You take the library to them. In 2004, the business librarian at J.D. Williams Library at the University of Mississippi began offering satellite or on-site reference to the School of Business Administration. Three years later the program is still running and considered a success—not only as a way to provide reference to a user group but also as a form of marketing and outreach for the library. 相似文献