Testing Criterion Correlations With Scale Component Measurement Errors Using Latent Variable Modeling     

Tenko Raykov  George A. Marcoulides  Siegfried Gabler  Youngjun Lee 《Structural equation modeling》2017,24(3):468-474

A latent variable modeling method for testing criterion correlations with measurement error terms in multicomponent measuring instruments is outlined. The approach is based on an application of the Benjamini–Hochberg multiple testing procedure and can be used when assumptions of validity estimation related procedures need to be examined. The method also allows studying the extent to which criterion validity coefficients might be due to the relationship between a presumed underlying latent construct evaluated by a psychometric scale and a criterion variable, or could be a consequence of the relation between measurement error in the overall scale score and the criterion. The discussed procedure is widely applicable with popular latent variable modeling software, and is illustrated using a numerical example.  相似文献   

Staff student partnership in assessment: enhancing assessment literacy through democratic practices     

Susan J. Deeley  Catherine Bovill 《Assessment & Evaluation in Higher Education》2017,42(3):463-477

In recent years, research and practice focused on staff and students working in partnership to co-design learning and teaching in higher education has increased. However, within staff–student partnerships a focus on assessment is relatively uncommon, with fewer examples evident in the literature. In this paper, we take the stance that all assessment can be oriented for learning, and that students’ learning is enhanced by improving their level of assessment literacy. A small study in a Scottish university was undertaken that involved a range of different adaptations to assessment and feedback, in which students were invited to become partners in assessment. We argue that a partnership approach, designed to democratise the assessment process, not only offered students greater agency in their own and their peers’ learning, but also helped students to enhance their assessment literacy. Although staff and students reported experiencing a sense of risk, there was immense compensation through increased motivation, and a sense of being part of an engaged learning community. Implications for partnership in assessment are discussed and explored further. We assert that adopting staff–student partnership in assessment and more democratic classroom practices can have a wide range of positive benefits.  相似文献   

Promoting university–industry collaboration in Malaysia: stakeholders’ perspectives on expectations and impediments     

Norzaini Azman  Morshidi Sirat  Vincent Pang  Yew Meng Lai  Anantha Raman Govindasamy  Wardatul Akmam Din 《Journal of Higher Education Policy & Management》2019,41(1):86-103

University–Industry Collaboration (UIC) has been identified as an essential item on Malaysia’s agenda for transforming itself into knowledge and innovation-based economy. However, despite the efforts, most initiatives have had limited results. This paper reports on an explorative study that sought to understand the contemporary realities of UIC in the Malaysian context. In particular, the study identified the expectations and impediments to UIC, from the perspectives of three groups of stakeholders – the academics, the industry players and policymakers. The findings reveal a number of barriers, including cultural differences, perceived lack of academic expertise and reputation, an inadequacy of institutional policies and regulations, lack of trust, issues of intellectual property rights, and the lack of an appropriate reward system. This paper concludes by proposing policy recommendations and strategies that could be used by the government, university, and the industry to promote further and foster university-industry collaborative opportunities and initiatives.  相似文献   

Embodied engagements with online pornography     

Patrick Keilty 《The Information Society》2016,32(1):64-73

Even though sexual arousal is a central feature in browsing online pornography, embodiment has largely gone unexamined in much of the research on pornography in information studies and human–computer interaction. Through existential phenomenology, which emphasizes a synthesis of cognitive reflection and embodied experience, this article examines how our embodied engagements with the technological apparatus of the computer help reconstitute the way we feel time, objects of desire, and pleasure in the process of browsing online pornography.  相似文献   

Excimer紫外灯辐照法钽氧化物膜XPS分析     

别利剑  尹静  彭菲  李春艳 《临沂师范学院学报》1998,(3)

报道了利用新型紫外光源—Ｅｘｃｉｍｅｒ紫外灯辐照制备钽氧化物薄膜的新方法,并对所制备的薄膜进行了Ｘ光光电子能谱（ＸＰＳ）分析,分析结果表明：所制备的钽氧化物薄膜不含碳而且符合化学计量比,有望获得好的介电性能  相似文献   

Examining motivation of IT vendors to share knowledge with clients     

《International Journal of Information Management》2023

To reduce information technology (IT) development costs, more firms have begun to outsource IT-related activities by partnering with IT vendors. As knowledge is a valuable asset in IT development, knowledge sharing between vendors and business clients becomes critical. However, the motivation behind IT vendors’ willingness to share knowledge with client firms is not sufficiently understood. To shed light on the nature of knowledge sharing within vendor–client partnerships, we examine the influence of performance feedback and managerial mindset on vendors’ motivation to share knowledge with their clients. We adopt a multi-method approach involving both a scenario-based field experiment with 164 vendor managers (Study 1) and a field survey of 112 vendor managers involved in IT development (Study 2). We find that when vendors’ performance exceeds their aspiration levels, they are motivated to share knowledge with clients. Such motivational effects are more pronounced for vendor managers exhibiting abstract mindsets. Our study is of significant value to researchers and practitioners, affording both groups a keener, deeper, and more robust appreciation for how knowledge sharing in vendor–client partnerships can be managed more effectively.  相似文献   

The dualistic view of challenge-hindrance technostress in accounting information systems: Technological antecedents and coping responses     

《International Journal of Information Management》2023

Owing to the pervasive use of accounting information systems (AIS), financial workers are experiencing increased levels of technostress. While technostress has been conceptualized as overwhelmingly harmful in the IS literature, the challenge–hindrance stressor model suggests that employees can also experience “good stress”. This study instantiates the challenge–hindrance stressor model and coping theory in the AIS context using a two-step mixed-method approach. A qualitative study was first conducted to conceptualize the AIS characteristics associated with technostress appraisals. This study then builds a research model that posits perceived challenge and hindrance technostressors and coping responses as key mechanisms linking AIS characteristics and job burnout. The model was tested by collecting longitudinal data from 285 accountants. The results revealed that several AIS characteristics are associated with technostressor appraisals, and such appraisals lead to proactive and reactive coping responses, which further influence job burnout. The theoretical and practical implications are also discussed.  相似文献   

Unifying knowledge iterative dissemination and relational reconstruction network for image–text matching     

《Information processing & management》2023,60(1):103154

Image–text matching is a crucial branch in multimedia retrieval which relies on learning inter-modal correspondences. Most existing methods focus on global or local correspondence and fail to explore fine-grained global–local alignment. Moreover, the issue of how to infer more accurate similarity scores remains unresolved. In this study, we propose a novel unifying knowledge iterative dissemination and relational reconstruction (KIDRR) network for image–text matching. Particularly, the knowledge graph iterative dissemination module is designed to iteratively broadcast global semantic knowledge, enabling relevant nodes to be associated, resulting in fine-grained intra-modal correlations and features. Hence, vector-based similarity representations are learned from multiple perspectives to model multi-level alignments comprehensively. The relation graph reconstruction module is further developed to enhance cross-modal correspondences by constructing similarity relation graphs and adaptively reconstructing them. We conducted experiments on the datasets Flickr30K and MSCOCO, which have 31,783 and 123,287 images, respectively. Experiments show that KIDRR achieves improvements of nearly 2.2% and 1.6% relative to Recall@1 on Flicr30K and MSCOCO, respectively, compared to the current state-of-the-art baselines.  相似文献   

Non-centralized control for flow-based distribution networks: A game-theoretical insight     

Julian Barreiro-Gomez  Carlos Ocampo-Martinez  Nicanor Quijano  José M. Maestre 《Journal of The Franklin Institute》2017,354(14):5771-5796

This paper solves a data-driven control problem for a flow-based distribution network with two objectives: a resource allocation and a fair distribution of costs. These objectives represent both cooperation and competition directions. It is proposed a solution that combines either a centralized or distributed cooperative game approach using the Shapley value to determine a proper partitioning of the system and a fair communication cost distribution. On the other hand, a decentralized non-cooperative game approach computing the Nash equilibrium is used to achieve the control objective of the resource allocation under a non-complete information topology. Furthermore, an invariant-set property is presented and the closed-loop system stability is analyzed for the non-cooperative game approach. Another contribution regarding the cooperative game approach is an alternative way to compute the Shapley value for the proposed specific characteristic function. Unlike the classical cooperative-games approach, which has a limited application due to the combinatorial explosion issues, the alternative method allows calculating the Shapley value in polynomial time and hence can be applied to large-scale problems.  相似文献   

“专业—素养—实践”三维结构下的现代教育技术课程教学改革研究——以实验教学改革为例   总被引：2，自引：1，他引：1  

陈卫东  王靖  刘卫春  辛蔚峰  任永祥  周红 《现代教育技术》2010,20(1)

现代教育技术课程是一门理论与实验并重的课程。在该课程学习中,学习者一方面要了解现代教育思想和理论,同时还要掌握利用教育技术进行教学的技能,更为重要的是,通过该课程学习来提高学习者的现代教育技术素质,培养其成为具有适应信息时代从教能力的师范人才。针对目前课程实验教学存在的问题,我们进行了"专业-素养-实践"三维结构下的现代教育技术课程实验教学改革,从目标、内容、策略、媒体和评价等五个方面进行了系统设计,并对实验教改的结果进行了简要的分析。  相似文献