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1.
In this digital ITEMS module, Dr. Jeffrey Harring and Ms. Tessa Johnson introduce the linear mixed effects (LME) model as a flexible general framework for simultaneously modeling continuous repeated measures data with a scientifically defensible function that adequately summarizes both individual change as well as the average response. The module begins with a nontechnical overview of longitudinal data analyses drawing distinctions with cross-sectional analyses in terms of research questions to be addressed. Nuances of longitudinal designs, timing of measurements, and the real possibility of missing data are then discussed. The three interconnected components of the LME model—(1) a model for individual and mean response profiles, (2) a model to characterize the covariation among the time-specific residuals, and (3) a set of models that summarize the extent that individual coefficients vary—are discussed in the context of the set of activities comprising an analysis. Finally, they demonstrate how to estimate the linear mixed effects model within an open-source environment (R). The digital module contains sample R code, diagnostic quiz questions, hands-on activities in R, curated resources, and a glossary. 相似文献
2.
On the surface, it might appear that libraries with different collections, staffing levels, and budgets would have to make use of different tools to address their e-resource management needs. However, in their review of electronic resources lifecycle work at North Carolina State University and Georgia Perimeter College, Tessa Minchew and Sofia Slutskaya discovered that this is not always the case. The presenters reviewed the electronic resources lifecycle and three distinct types of tools (content management systems/wikis, Microsoft Access, and Trello) that are being used in different ways to address different lifecycle-related tasks at each of their institutions. 相似文献
3.
Thomas E. Gaston Francesca Ounsworth Tessa Senders Sarah Ritchie Emma Jones 《Learned Publishing》2020,33(2):154-162
Previous research has found that researchers rank journal reputation and impact factor (IF) amongst the key selection criteria when choosing where to submit. We explored the actual effect upon submission numbers of several possible factors. We retrieved 10 years of submission data from over a thousand journals, as well as data on IF, retractions, and other factors. We performed statistical analysis and identified correlations. We also undertook case study research on the 55 most significant submission decreases. We found a statistically significant correlation between changes in IF, ISI percentage ranking, and changes in submissions numbers in subsequent years. We also found a statistically significant effect on submission numbers in the year following the publication of a retraction. Our case studies identified other factors, including negative feedback on the peer review process. Our findings regarding IF confirm previous indications about the significance of IF on submissions. We explain the correlation with retractions through the concept of ‘peer review reputation’. These results indicate that editors and publishers need to focus on a journal's peer review practices, as well as a journal's IF, if they are to maintain and grow submissions. 相似文献
4.
The effects of group dependent and group interdependent reinforcement contingencies on the level of socially appropriate behaviors emitted by emotionally handicapped elementary school students were examined. The investigation employed an ABAC design with a systematic replication (ACAB) across a second classroom. The findings suggested that: (a) Both group dependent and group interdependent reinforcement contingencies were effective in incieasing the level of socially appropriate behaviors. (b) For Classroom II, group interdependent reinforcement contingencies more often resulted in higher rates of responding for individual subjects than did group dependent reinforcement contingencies. (c) Group interdependent contingencies were shown to set the occasion for cooperative behavior among class members designed to help each other achieve individual but interdependent goals. 相似文献
5.
Michael Strain 《British Journal of Educational Studies》1998,46(3):264-277
Lifelong learning should embrace more than instrumental purposes. Some late modern social formations threaten individual autonomy, subordinating the needs of 'agent'in a 'locality'to universalising rationality, necessary for growth in a globalized and virtualised economy. These phenomena are discussed and illustrated. Learning, now an'economic' activity, could bind individuals in heteronymously defined lifeworlds. Prerequisites of an alternative conceptualisation are examined. 相似文献
6.
Tessa Blackstone 《Higher Education Quarterly》2001,55(2):175-184
It is an honour to be invited to give the Birley Lecture here at City University 1 . Many previous lecturers had personal contacts with Robert Birley. Alas, I did not, like Lord Prior, keep pigs at Charterhouse during the war. Nor was I spotted by Robert Birley on the strength of brilliant scholarship answers in history, but coupled with undistinguished Latin and Greek, and worse mathematics, like William Rees-Mogg. But I do share with Robert Birley a passion for education. Not only as an end in itself, but also as a means to increase the prosperity of society as a whole and the life-chances of individuals. I want to concentrate this evening on university education, and to make links with the very end of Robert Birley's distinguished career, when he was professor and head of the department of social sciences here. I shall talk about the future of higher education in a world which is changing rapidly, and in which the application of knowledge will be essential to our prosperity. 相似文献
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The present study examined changes in multicultural, Muslim and acculturation attitudes in the Dutch military. In 2008 and 2006 two large quantitative surveys were conducted within the Dutch military. The results of the survey in 2006 showed a slightly negative attitude of Dutch Defense employees towards multiculturalism and a strong preference for assimilation in the public context. Interestingly, in 2008 attitudes towards Multiculturalism had become more positive as compared to 2006. Although in 2008 a higher rate of employees preferred the integration strategy, the majority still favored migrants to adopt an assimilation strategy. 相似文献
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Tessa Thorniley 《考试》2013,(2):33-34
一位女士满脸笑容地朝我们走来:"他长得真俊!多大了?"我顿时开心起来,直到我意识到她指的是我妹妹的那只猎犬。 相似文献