DCMI2013听会点滴

文章分享作者参加都柏林核心元数据组织（Dublin Core Metadata Initiative,DCMI）2013年国际会议的几点体会,重点在于采用规范数据支持数据实时混搭的两种不同方式、元数据属性映射的两种不同水平和表现方法,以及数字图书馆数据模型的三种不同实现方案。     

Giving feedback: Development of scales for the mum effect,discomfort giving feedback,and feedback medium preference

Research in organizational behavior and human resources promotes the view that it is critical for managers to provide accurate feedback to employees, yet little research addresses rater tendencies (i.e., the mum effect) and attitudes that influence how performance feedback is given. Because technology has changed the nature of communication in organizations (e.g., feedback given by e‐mail), there is a need to determine how a feedback giver's preference for the delivery medium might influence the message. In this article, we develop three scales measuring the mum effect, discomfort with giving feedback, and feedback medium preference to determine feedback givers' tendencies, which may be used to improve feedback delivery. We then used these scales in a feedback situation. Findings are reported and practical implications discussed.     

Multifaceted Assessment of Inquiry-Based Science Learning

To improve student science achievement in the United States we need inquiry-based instruction that promotes coherent understanding and assessments that are aligned with the instruction. Instead, current textbooks often offer fragmented ideas and most assessments only tap recall of details. In this study we implemented 10 inquiry-based science units that promote knowledge integration and developed assessments that measure student knowledge integration abilities. To measure student learning outcomes, we designed a science assessment consisting of both proximal items that are related to the units and distal items that are published from standardized tests (e.g., Trends in International Mathematics and Science Study). We compared the psychometric properties and instructional sensitivity of the proximal and distal items. To unveil the context of learning, we examined how student, class, and teacher characteristics affect student inquiry science learning. Several teacher-level characteristics including professional development showed a positive impact on science performance.     

Learning from Chemical Visualizations: Comparing generation and selection

Dynamic visualizations can make unseen phenomena such as chemical reactions visible but students need guidance to benefit from them. This study explores the value of generating drawings versus selecting among alternatives to guide students to learn chemical reactions from a dynamic visualization of hydrogen combustion as part of an online inquiry unit. In prior research, generation has been more successful than selection in helping students distinguish among ideas to learn complex topics. However, selecting among perplexing alternatives may motivate learners to distinguish among ideas they might otherwise neglect. To test the value of selection for helping students distinguish ideas, this study contrasted complex selection (involving normative as well as non-normative ideas identified in prior research) from typical selection (involving images from the visualization). Results showed that all conditions improved student understanding and that typical selection was less effective than generation while complex selection was as successful as generation. In both generation and complex selection students revisited the visualization while learning, whereas revisiting was rare in typical selection. These results support the idea that distinguishing among common non-normative ideas is more valuable than distinguishing among images from the visualization. In addition, for students with low prior knowledge, both generation and complex selection had some advantages. Overall, the results suggest that students learning from complex visualizations could benefit from a combination of complex selection and generation.     

Effect of Content Knowledge on Angoff‐Style Standard Setting Judgments

Evidence to support the credibility of standard setting procedures is a critical part of the validity argument for decisions made based on tests that are used for classification. One area in which there has been limited empirical study is the impact of standard setting judge selection on the resulting cut score. One important issue related to judge selection is whether the extent of judges’ content knowledge impacts their perceptions of the probability that a minimally proficient examinee will answer the item correctly. The present article reports on two studies conducted in the context of Angoff‐style standard setting for medical licensing examinations. In the first study, content experts answered and subsequently provided Angoff judgments for a set of test items. After accounting for perceived item difficulty and judge stringency, answering the item correctly accounted for a significant (and potentially important) impact on expert judgment. The second study examined whether providing the correct answer to the judges would result in a similar effect to that associated with knowing the correct answer. The results suggested that providing the correct answer did not impact judgments. These results have important implications for the validity of standard setting outcomes in general and on judge recruitment specifically.     

Stakeholders as researchers: A multiple case study of using cooperative inquiry to develop and document the formative leadership experiences of new school library professionals

Cooperative inquiry, a form of qualitative research used in community building, has not often been applied in educational contexts. Through the lens of formative leadership theory, the researchers studied the abilities of three new school librarians trained in cooperative inquiry and leadership to engage in collaborative problem solving for technology-related school challenges. Due to internal and external factors, participants experienced various levels of success with their challengers, but cooperative inquiry proved to be a viable methodology to evaluate the outcomes of library education for school librarians' formative leadership.     

‘Uni has a different language … to the real world’: demystifying academic culture and discourse for students from low socioeconomic backgrounds

The Australian government has set ambitious targets for increased higher-education participation of people from low socioeconomic backgrounds. There is, thus, a pressing need to explore how best to empower these students with what they require to progress and succeed at university. The paper draws on a literature review and qualitative data from a national study in which 89 students from low socioeconomic backgrounds and 26 staff were interviewed. The paper argues that demystifying academic culture and discourses for these students is a key step institutions and staff can take in assisting students from low socioeconomic backgrounds to progress and succeed at university. A recurring theme to emerge from both the literature and interviews with students and staff was that teaching the discourse empowers and enables students to learn, has a positive impact on their sense of belonging and ultimately helps them succeed in higher education.