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1.
Pasquale Del Vecchio Gioconda Mele Valentina Ndou Giustina Secundo 《Information processing & management》2018,54(5):847-860
This paper aims to demonstrate how the huge amount of Social Big Data available from tourists can nurture the value creation process for a Smart Tourism Destination. Applying a multiple-case study analysis, the paper explores a set of regional tourist experiences related to a Southern European region and destination, to derive patterns and opportunities of value creation generated by Big Data in tourism. Findings present and discuss evidence in terms of improving decision-making, creating marketing strategies with more personalized offerings, transparency and trust in dialogue with customers and stakeholders, and emergence of new business models. Finally, implications are presented for researchers and practitioners interested in the managerial exploitation of Big Data in the context of information-intensive industries and mainly in Tourism. 相似文献
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Digital Module 05: Diagnostic Measurement—The G‐DINA Framework https://ncme.elevate.commpartners.com
In this ITEMS module, we introduce the generalized deterministic inputs, noisy “and” gate (G‐DINA) model, which is a general framework for specifying, estimating, and evaluating a wide variety of cognitive diagnosis models. The module contains a nontechnical introduction to diagnostic measurement, an introductory overview of the G‐DINA model, as well as common special cases, and a review of model‐data fit evaluation practices within this framework. We use the flexible GDINA R package, which is available for free within the R environment and provides a user‐friendly graphical interface in addition to the code‐driven layer. The digital module also contains videos of worked examples, solutions to data activity questions, curated resources, a glossary, and quizzes with diagnostic feedback. 相似文献
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王金奎 《雁北师范学院学报》2005,21(6):88-90
格塞尔是20世纪三四十年代美国著名的儿童心理学家,他以研究婴幼儿的行为发展而闻名于世。出于对儿童行为发展的模式化和形变的规律的研究,他选择了电影技术作为自己的研究工具,并首创了使用电影的方法研究儿童行为——电影分析法。本文简要地介绍了格塞尔使用电影作为研究手段的目标、原则和方法。 相似文献
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Reconsidering Reliability in Classroom Assessment and Grading 总被引:1,自引:0,他引:1
Jeffrey K. Smith 《Educational Measurement》2003,22(4):26-33
It is argued that classroom assessment evolves from a different set of issues and demands from more traditional measurement concerns and that approaches to reliability developed from traditional concerns are not appropriate for most classroom settings. The assessment and grading issues for high school instruction are examined from the perspective of reliability. An alternative conceptualization of reliability, sufficiency of information, is proposed and explored. This conceptualization is based on the argument that at a rudimentary level, reliability theory is based on the notion of having enough information to make decisions or draw inferences. 相似文献
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企业绩效评价指标体系中存在的问题及改进建议 总被引:5,自引:0,他引:5
彭晓洁 《商丘职业技术学院学报》2006,5(4):24-25
企业绩效评价就是按照企业目标设计相应的评价指标体系,对企业一定经营期间的经营业绩做出客观、公正和准确的综合判断。通过分析我国现行企业绩效评价指标体系中存在的问题,提出了相应的改进建议。 相似文献
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Yan Wang Eunsook Kim John M. Ferron Robert F. Dedrick Tony X. Tan Stephen Stark 《Educational and psychological measurement》2021,81(1):61
Factor mixture modeling (FMM) has been increasingly used to investigate unobserved population heterogeneity. This study examined the issue of covariate effects with FMM in the context of measurement invariance testing. Specifically, the impact of excluding and misspecifying covariate effects on measurement invariance testing and class enumeration was investigated via Monte Carlo simulations. Data were generated based on FMM models with (1) a zero covariate effect, (2) a covariate effect on the latent class variable, and (3) covariate effects on both the latent class variable and the factor. For each population model, different analysis models that excluded or misspecified covariate effects were fitted. Results highlighted the importance of including proper covariates in measurement invariance testing and evidenced the utility of a model comparison approach in searching for the correct specification of covariate effects and the level of measurement invariance. This approach was demonstrated using an empirical data set. Implications for methodological and applied research are discussed. 相似文献
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Jules L. Ellis 《Educational and psychological measurement》2021,81(3):549
This study develops a theoretical model for the costs of an exam as a function of its duration. Two kind of costs are distinguished: (1) the costs of measurement errors and (2) the costs of the measurement. Both costs are expressed in time of the student. Based on a classical test theory model, enriched with assumptions on the context, the costs of the exam can be expressed as a function of various parameters, including the duration of the exam. It is shown that these costs can be minimized in time. Applied in a real example with reliability .80, the outcome is that the optimal exam time would be much shorter and would have reliability .675. The consequences of the model are investigated and discussed. One of the consequences is that optimal exam duration depends on the study load of the course, all other things being equal. It is argued that it is worthwhile to investigate empirically how much time students spend on preparing for resits. Six variants of the model are distinguished, which differ in their weights of the errors and in the way grades affect how much time students study for the resit. 相似文献
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