Strategic Management of Educational Technology—The Importance of Leadership and Management

Through case study research critical leadership and management tasks are identified regarding the integration of educational technology in teaching at research universities. The institutions studied, regardless their different characteristics and approaches, face common difficulties in engaging’ second-wave’ faculty. Furthermore, the coordination of different support units such as edtech centres, IT support, teaching and learning labs or the libraries to offer well-rehearsed educational technology services is challenging. Strong leadership is critical to motivate faculty and to assist support units to overcome sub-cultural differences. Similarly, solid management practice is indispensable. Incentive, reward and support structures need to be adjusted to new realities and a well coordinated workflow needs to be designed.

     

Workplace educators’ interpretations of their assessment practices: a view through a critical practice lens

In this paper, we examine workplace educators’ interpretations of their assessment practices. We draw on a critical practice lens to conceptualise assessment practice as a social, relational and situated practice that becomes critical through critique and emancipation. We conducted semi-structured interviews followed by roundtable discussions with physiotherapy clinical educators in the workplace. Employing a critical hermeneutic approach, data was scrutinised to understand relational and critical dimensions of assessment practices. Findings revealed that participants were socialised into assessment practices. They were aware of the challenges, and they grappled with the tension between their practice-based judgments and documentation of competence. Despite this tension, there was a reluctance to move their awareness of practice tensions towards emancipatory action which could relieve these tensions. We conclude that it is important to acknowledge the judgements which inform assessment practice and the tensions assessors feel between objective and subjective assessments. Assessors who deliberately engage with these tensions can emancipate their assessment practices towards a critical, wise and self-defining practice that nurtures lifelong learning in students and assessors alike.     

Disposition assessment in teacher education: A framework and instrument for assessing technology disposition

Abstract

This study proposes and verifies the concept of a technology disposition in teacher education, which is comprised of predisposition and competence. It examines the reliability and validity of a measure of the technology disposition of teacher education students, the Technology Disposition Scale for Teacher Education Students (TDS‐T). The TDS‐T is comprised of two subscales: technology predisposition and technology competence. In this study, the TDS‐T was completed by 656 teacher education students. Results showed the proposed disposition model of predisposition and competence had significant relationships with gender and class year. Male students had significantly higher overall technology disposition scores than did female students, but these differences were due to the male students' strong self‐concept, especially self‐confidence. Students technology competence level was significantly higher for seniors than for sophomores, and the overall technology disposition scores significantly increased from students' junior to senior years. The TDS‐T demonstrated content validity through factor analysis and convergent and discriminate validity through item analysis. The value for Cronbach's alpha was .93, indicating highly satisfactory reliability.     

亚琛宁波姊妹情

从上世纪90年代以来,我一直是《文化交流》的一名忠实读者。十余年间,这本刊物在我面前打开了一扇新的窗户,我通过它了解到古老中国的巨大进步,了解到中国与世界人民日益发展的友谊。说来也巧,今年是《文化交流》创办20周年,也是我所在的德国亚琛市与浙江省宁波市结为姐妹城市2     

Cycling power output produced during flat and mountain stages in the Giro d'Italia: a case study

Until recently, the physiological demands of cycling competitions were mostly reflected by the measurement of heart rate and the indirect estimation of exercise intensity. The purpose of this case study was to illustrate the varying power output of a professional cyclist during flat and mountain stages of a Grand Tour (Giro d'Italia). Nine stage recordings of a cyclist of the 2005 Giro d'Italia were monitored using a mobile power measurement device (SRM Trainingssystem, Julich, Germany), which recorded direct power output and heart rate. Stages were categorized into flat (n = 5) and mountain stages (n = 4). Data were processed electronically, and the overall mean power in flat and mountain stages and maximal mean power for various durations were calculated. Mean power output was 132 W +/- 26 (2.0 W x kg(-1) +/- 0.4) for the flat and 235 W +/- 10 (3.5 W x kg(-1) +/- 0.1) for the mountain stages. Mountain stages showed higher maximal mean power (367 W) for longer durations (1800 s) than flat stages (239 W). Flat stages are characterized by a large variability of power output with short bursts of high power and long periods with reduced intensity of exercise, whereas mountain stages mostly require submaximal, constant power output over longer periods.     

Fusion Via a Linear Combination of Scores

We present a thorough analysis of the capabilities of the linear combination (LC) model for fusion of information retrieval systems. The LC model combines the results lists of multiple IR systems by scoring each document using a weighted sum of the scores from each of the component systems. We first present both empirical and analytical justification for the hypotheses that such a model should only be used when the systems involved have high performance, a large overlap of relevant documents, and a small overlap of nonrelevant documents. The empirical approach allows us to very accurately predict the performance of a combined system. We also derive a formula for a theoretically optimal weighting scheme for combining 2 systems. We introduce d—the difference between the average score on relevant documents and the average score on nonrelevant documents—as a performance measure which not only allows mathematical reasoning about system performance, but also allows the selection of weights which generalize well to new documents. We describe a number of experiments involving large numbers of different IR systems which support these findings.