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排序方式: 共有259条查询结果,搜索用时 15 毫秒
91.
Science & Education - Bioscientific advances raise numerous new ethical dilemmas. Neuroscience research opens possibilities of tracing and even modifying human brain processes, such as...  相似文献   
92.
Research in Higher Education - Many degree-seeking college students struggle academically and ultimately never graduate. Academic challenges and persistence within the major are especially salient...  相似文献   
93.
This paper contributes to research about organizational effects on the socialization of undergraduates and the formation of engineers' values by examining the effects of exposure to academic and industrial work, in the form of cooperative employment and undergraduate research, on the educational experiences, job values, and life objectives of engineering students. Using data from a questionnaire survey conducted in the spring of 1990, we found that both programs strongly influenced participants' skills, job values, and life objectives, even when social background, academic performance, reasons for attending college, parental socialization, and other collegiate and noncollegiate variables were controlled. Cooperative employment more strongly influenced students' skills and had a greater effect on their career decisions, but research experience had a surprisingly powerful influence on values and life objectives, particularly the value placed on receiving peer recognition and influencing the political structure.  相似文献   
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95.
The development of curriculum materials that are also educative for teachers has been proposed as a strategy to support teachers learning to teach inquiry science. In this study, one seventh-grade teacher used five inquiry science units with varying support for teachers over a two-year period. Teacher journals, interviews, and classroom videotape were collected. Analysis focused on engagement in planning and teaching, pedagogical content knowledge, and the match to teacher learning needs. Findings indicate that this teacher’s ideas developed as she interacted with materials and her students. Information about student ideas, task- and idea-specific support, and model teacher language was most helpful. Supports for understanding goals, assessment, and the teacher’s role, particularly during discussions and group work, were most needed.  相似文献   
96.
The most famous role-playing game, Dungeons & Dragons, recently celebrated the fortieth anniversary of its release. The books that define the games in the role-playing genre function like sports rulebooks, contain entries like encyclopedias, or are based on collections of maps similar to those in atlases. In the library context, this places the books that define role-playing games in the domain of reference books. While currently divisions of the American Library Association encourage librarians to consider using the game in community-building and youth services, there was a time period where organized groups actively tried to discourage librarians from collecting materials associated with the genre. This study is an assessment of library holdings of role-playing game materials worldwide, detailing collection and cataloging issues associated with the genre.  相似文献   
97.
This article raises concerns about the advantages of using statistical significance tests in research assessments as has recently been suggested in the debate about proper normalization procedures for citation indicators by Opthof and Leydesdorff (2010). Statistical significance tests are highly controversial and numerous criticisms have been leveled against their use. Based on examples from articles by proponents of the use statistical significance tests in research assessments, we address some of the numerous problems with such tests. The issues specifically discussed are the ritual practice of such tests, their dichotomous application in decision making, the difference between statistical and substantive significance, the implausibility of most null hypotheses, the crucial assumption of randomness, as well as the utility of standard errors and confidence intervals for inferential purposes. We argue that applying statistical significance tests and mechanically adhering to their results are highly problematic and detrimental to critical thinking. We claim that the use of such tests do not provide any advantages in relation to deciding whether differences between citation indicators are important or not. On the contrary their use may be harmful. Like many other critics, we generally believe that statistical significance tests are over- and misused in the empirical sciences including scientometrics and we encourage a reform on these matters.  相似文献   
98.
A 2-stage procedure for estimation and testing of observed measure correlations in the presence of missing data is discussed. The approach uses maximum likelihood for estimation and the false discovery rate concept for correlation testing. The method can be used in initial exploration-oriented empirical studies with missing data, where it is of interest to estimate manifest variable interrelationship indexes and test hypotheses about their population values. The procedure is applicable also with violations of the underlying missing at random assumption, via inclusion of auxiliary variables. The outlined approach is illustrated with data from an aging research study.  相似文献   
99.
Global software engineering (GSE) has received increased attention, as globalization enables and encourages increased distribution of product development. Many empirical studies and systematic literature reviews (SLRs) focus on the identification of challenges, this paper however presents the first SLR collecting and analyzing solutions associated with GSE, while also evaluating the level of empirical validation of said solutions. As a starting point the paper presents a GSE model, designed to categorize solutions into process areas, useful for the analysis of the research community's contributions to state-of-the-art and identifying fundamental gaps in research. In addition, the model categorizing the solutions is populated with references and good-examples, useful for practitioners, which can use the model to find solutions to overall challenges in various process areas. The overall results of the systematic review revealed more than 330 papers containing 127 solutions that were then identified and mapped to the model. The process areas of project management are highly populated, while other areas like product integration have received surprisingly little attention. In addition, selected process area is elaborated upon in terms of contents and deficiencies.  相似文献   
100.
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