Self Organising Wayfinding Support for Lifelong Learners

Lifelong learning puts learner self-direction centre-stage. However, increased responsibility should not come at the price of over-burdening or abandonment of learners as they progress along their learning journey. This paper introduces an approach to wayfinding support for lifelong learners based on self-organisation theory. It describes an architecture which supports the recording, processing and presentation of collective learner behaviour designed to create a feedback loop informing learners of successful paths towards the attainment of learning goals. The approach is presented as an alternative to methods of achieving adaptation in hypermedia-based learning environments which involve learner modelling. The article concludes with a discussion of the questions being addressed in our ongoing research.     

Evaluation of Actical equations and thresholds to predict physical activity intensity in young children

This study examined the validity of current Actical activity energy expenditure (AEE) equations and intensity cut-points in preschoolers using AEE and direct observation as criterion measures. Forty 4–6-year-olds (5.3 ± 1.0 years) completed a ~150-min room calorimeter protocol involving age-appropriate sedentary behaviours (SBs), light intensity physical activities (LPAs) and moderate-to-vigorous intensity physical activities (MVPAs). AEE and/or physical activity intensity were calculated using Actical equations and cut-points by Adolph, Evenson, Pfeiffer and Puyau. Predictive validity was examined using paired sample t-tests. Classification accuracy was evaluated using weighted kappas, sensitivity, specificity and area under the receiver operating characteristic curve. The Pfeiffer equation significantly overestimated AEE during SB and underestimated AEE during LPA (P < 0.0125 for both). There was no significant difference between measured and predicted AEEs during MVPA. The Adolph cut-point showed significantly higher accuracy for classifying SB, LPA and MVPA than all others. The available Actical equation does not provide accurate estimates of AEE across all intensities in preschoolers. However, the Pfeiffer equation performed reasonably well for MVPA. Using cut-points of ≤6 counts · 15 s^?1, 7–286 counts · 15 s^?1 and ≥ 287 counts · 15 s^?1 when classifying SB, LPA and MVPA, respectively, is recommended.     

Digital Learning Material for Model Building in Molecular Biology

Building models to describe processes forms an essential part of molecular biology research. However, in molecular biology curricula little attention is generally being paid to the development of this skill. In order to provide students the opportunity to improve their model building skills, we decided to develop a number of digital cases about developmental biology. In these cases the students are guided to build a model according to a method that is based on expert analysis and historical data; they first build a simplified model based on the wild-type only and then they extend this model step by step based on experimental results. After each extension, the biological implications of the extension are evaluated. The first case was evaluated three times during a regular course at Wageningen University, The Netherlands and once at the University of Zurich, Switzerland. The analysis of audiotapes revealed that students did indeed engage in the reasoning processes, which are typical for model building. Furthermore, exam results seem to suggest that working with the case indeed facilitates model building in analogical situations and the students judged working with the case positively.     

Flexible authoring and delivery of online courses using IMS Learning Design

Since the publication of the IMS Learning Design (IMS LD) specification in 2003, many initiatives have been undertaken to build authoring tools that are simple enough to be used by non-technical instructors and teachers. IMS LD's technical complexity is believed to be a major burden for the adoption of the specification. We have developed a new approach for course authoring and delivery that hides most of the complexities and is powerful enough to create highly flexible online courses. Key aspects in this approach are (1) integration of IMS LD authoring and delivery tools in order to enable teachers to adapt courses in runtime and (2) the use of templates to standardize aspects of the LD. This article reports on the research and development of this approach, as well as a first implementation by the Open University of the Netherlands as part of an integrated e-learning system.     

Automatic versus manual indexing

A comparative evaluation has been carried out on the Philips “DIRECT” and the British “INSPEC” retrieval system. DIRECT is based on automatic indexing whereas INSPEC uses manual subject indexing.Two queries were submitted to both systems, using the same data base. The results are expressed in terms of recall and precision. Both recall and precision of INSPEC were found to be higher than those of DIRECT by 20%. It is concluded that this is mainly a result of the query formulation. The effectiveness obtained with automatic indexing of documents is equivalent to that of the manual procedure.     

Comparing Effects of Instruction on Word Meaning and Word Form on Early Literacy Abilities in Kindergarten

Research Findings: The present study compared effects of explicit instruction on and practice with the phonological form of words (form-focused instruction) versus explicit instruction on and practice with the meaning of words (meaning-focused instruction). Instruction was given via interactive storybook reading in the kindergarten classroom of children learning Dutch. We asked whether the 2 types of instruction had different effects on vocabulary development and 2 precursors of reading ability—phonological awareness and letter knowledge—and we examined effects on these measures of the ability to learn new words with minimal acoustic-phonetic differences. Learners showed similar receptive target-word vocabulary gain after both types of instruction, but learners who received form-focused vocabulary instruction showed more gain in semantic knowledge of target vocabulary, phonological awareness, and letter knowledge than learners who received meaning-focused vocabulary instruction. Level of ability to learn pairs of words with minimal acoustic-phonetic differences predicted gain in semantic knowledge of target vocabulary and in letter knowledge in the form-focused instruction group only. Practice or Policy: A focus on the form of words during instruction appears to have benefits for young children learning vocabulary.     

Evaluating websites from a public value perspective: A review of Turkish local government websites

Government website evaluations do not always reflect the websites’ aims. Often, only aspects such as content and quality are considered, whereas the primary goal of these websites is to deliver public value. In this paper we introduce the public value perspective for website evaluation. A meta-analysis of website evaluation literature is presented, the findings being that there is no uniform or comprehensive set of website evaluation metrics and that the public value perspective is largely neglected in the website evaluation literature. Next, we describe how we integrated web evaluation and public value literature in order to develop a set of criteria used for evaluating the websites of sixteen Turkish local governments. The websites performed relatively well on traditional indicators, but less well on public values measures. In particular, we found that the websites are good at supporting requests, categorization and usability, but not satisfactory at providing platforms for citizen engagement, responsiveness and dialog. Finally, we argue that the public value perspective should be incorporated in the evaluations of websites and other public efforts.     

Task-related and social regulation during online collaborative learning

This study investigated how students collaborate in a CSCL environment and how this collaboration affects group performance. To answer these questions, the collaborative process of 101 groups of secondary education students when working on a historical inquiry task was analyzed. Our analyses show that group members devote most of their efforts to regulation of task-related activities. For example, by formulating plans or strategies or monitoring task progress. Group members also engaged in social activities often (e.g., disclosing personal information, joking). Less attention was paid to exchange of task-related information (e.g., asking task-related questions) and regulation of social activities (e.g., planning and monitoring the collaboration). Exploratory factor analysis was used to identify the interrelationships between the different collaborative activities. This analysis showed that collaborative activities can be grouped in four broad categories: discussion of information, regulation of task-related activities, regulation of social activities, and social activities. These activities were then used to predict group performance using multiple regression analysis. No effect of discussion of information and regulation of task-related activities on group performance were found. Regulation of social activities positively affected group performance, whereas social interaction negatively affected group performance. As in this study no inferences could be made about the causal relation between collaboration and performance, future research should attempt to focus on this relationship, for example by investigating more closely how different individual and group factors affect collaboration and group performance.     

Tapping into existing information flows: The transformation to compliance by design in business-to-government information exchange

Transforming Business-to-Government (B2G) information exchange is a next frontier for reducing government spending while improving performance. This paper examines two different B2G information exchange architectures that reflect continuing transformations that empower some government agencies to do better compliance monitoring tasks with fewer resources. The win for the reporting companies is the lower cost of compliance. Instead of focusing on collecting compliance information from individual companies, the government agencies in this study focus on collecting information on the supply chain level, allowing for automated data reconciliation. Our findings reveal that pushing controls (automated checks) upstream (in company software and data sources) results in more efficiency, higher information quality and reduces redundant controls. The examined architectures exhibit high levels of compliance by design, meaning that many control objectives are by default encompassed in the design. This requires a well-aligned combination of data standardization (using shared syntax and semantics) and automated information processing (using an intelligent gateway between businesses and government agencies). However, achieving such an alignment is a difficult challenge; especially when taking into account that such transformations require solid governance, trust and high initial investments — prerequisites that are rare in many public-private partnerships.     

Corporate Historical Responsibility (CHR): Addressing a Corporate Past of Forced Labor at Volkswagen

This article introduces corporate historical responsibility (CHR), a concept that can guide organizations when addressing dark corporate histories. CHR holds that organizations have responsibilities toward victims of past corporate practices and toward present reconciliatory discourse. Volkswagen's discourse about its history of forced labor during WW II serves as an example of CHR. The rhetorical analysis illustrates that CHR hinges on the recognition of the past as a moral issue and on the organization's ability to create historical accountability, take responsibility, make public acknowledgements, and remember its past. It further illustrates that CHR creates sustainable policies that can strengthen corporate citizenship and serve as a means of (re-)legitimation. In order to repair broken relationships, the article concludes, organizational leaders need to overcome primary concerns with liability and invest in a shared and long-term CHR process that creates spaces for ongoing discourse about the past.