Differentiating Different Types of Cognitive Load: a Comparison of Different Measures

Recent studies about learning and instruction use cognitive load measurement to pay attention to the human cognitive resources and to the consumption of these resources during the learning process. In order to validate different measures of cognitive load for different cognitive load factors, the present study compares three different methods of objective cognitive load measurement and one subjective method. An experimental three-group design (N = 78) was used, with exposure to seductive details (extraneous cognitive load factor), mental animation tasks (germane cognitive load factor), or the basic learning instruction (control group). Cognitive load was measured by the rhythm method (Park and Brünken 2015), the index of cognitive activity (ICA) (Marshall 2007), and the subjective ratings of mental effort and task difficulty (Paas 1992). Eye-tracking data were used to analyze the attention allocation and as an indicator for cognitive activity. The results show a significantly higher cognitive load for the mental animation group in contrast to the control and the seductive detail group, indicated by rhythm method and subjective ratings, as well as a higher cognitive activity, indicated by eye tracking. Furthermore, the mental animation group shows significantly higher comprehension performance in contrast to the seductive detail group and significantly higher transfer performance in contrast to the control group. The ICA values showed no significant differences in cognitive load. The results provide evidence for the benefits of combining eye-tracking analysis and the results of cognitive load ratings or secondary task performance for a direct and continuous cognitive load assessment and for a differentiating access to the single cognitive load factors.     

Using intellectual capital statements to determine value drivers and priorities for organizational change: a portfolio selection approach

Ex post examination of a firm's performance in key intellectual capital indicators can demonstrate the value-creating potential and the organizational change aspect of intellectual capital reporting and management. These insights form the basis of an intellectual capital portfolio selection problem. Portfolio selection takes place in two stages. First, we calculate mean returns and variances for each market-valued portion of intellectual capital. Based on these estimations, we set up a portfolio selection problem. The solution to this portfolio selection problem provides priorities for organizational change. In this framework, the portfolio weights stand for organizational priorities, the weight constraints represent organizational barriers for change and the correlation of returns stands for the organizational interdependence of the intellectual capital components.     

Achieving knowledge across borders: facilitating practices of triangulation, obliterating “digital junkyards”

International companies expanding and competing in an increasingly global context are currently discovering the necessity of sharing knowledge across geographical and disciplinary borders. Yet, especially in such contexts, sharing knowledge is inherently complex and problematic in practice. Inspired by recent contributions in science studies, this paper argues that knowledge sharing in a global context must take into account the heterogeneous and locally embedded nature of knowledge. In this perspective, knowledge cannot easily be received through advanced information technologies, but must always be achieved in practice. Empirically, this paper draws from two contrasting initiatives in a major international oil and gas company for improving its current ways of sharing knowledge between geographically distributed sites and disciplines involved in well planning and drilling. The contrasting cases reveal that while a shared database system failed to improve knowledge sharing across contexts, a flexible arrangement supporting collaboration and use of different representation of knowledge was surprisingly successful. Based on these findings the paper underscores and conceptualizes various triangulating practices conducted in order to achieve knowledge across borders. More accurately these practices are central for individuals’ and communities’ abilities to: (i) negotiate ambiguous information, (ii) filter, combine, and integrate various heterogeneous sources of information, and (iii) judge the trustworthiness of information. Concerning the design and use of information technologies this implies that new designs need to facilitate triangulating practices of users rather than just providing advanced platforms (“digital junkyards”) for sharing information.     

Citizenship discourses: production and curriculum

This paper explores citizenship discourses empirically through upper secondary school student’s understandings, as these emerge in and through their everyday experiences. Drawing on a post-structuralist theorisation inspired by the work of Michel Foucault, a discourse analysis of data from interviews with students is carried out. This analysis characterises three discourses of the active citizen – a knowledgeable citizen, a responsive and holistic citizen, and a self-responsible ‘free’ citizen. The analysis raises questions over the implications of contemporary efforts for the intensification of standardising forces through citizenship education. It also stresses the notion that engaging students actively does always also involve discourses other than those stressed through the curriculum, which nurtures the body and nerve of democracy itself.     

Students’ Energy Concepts at the Transition Between Primary and Secondary School

Energy is considered both a core idea and a crosscutting concept in science education. A thorough understanding of the energy concept is thought to help students learn about other (related) concepts within and across science subjects, thereby fostering scientific literacy. This study investigates students’ progression in understanding the energy concept in biological contexts at the transition from primary to lower secondary school by employing a quantitative, cross-sectional study in grades 3–6 (N?=?540) using complex multiple-choice items. Based on a model developed in a previous study, energy concepts were assessed along four aspects of energy: (1) forms and sources of energy, (2) transfer and transformation, (3) degradation and dissipation, and (4) energy conservation. Two parallel test forms (A and B) indicated energy concept scores to increase significantly by a factor of 2.3 (A)/1.7 (B) from grade 3 to grade 6. Students were observed to progress in their understanding of all four aspects of the concept and scored highest on items for energy forms. The lowest scores and the smallest gain across grades were found for energy conservation. Based on our results, we argue that despite numerous learning opportunities, students lack a more integrated understanding of energy at this stage, underlining the requirement of a more explicit approach to teaching energy to young learners. Likewise, more interdisciplinary links for energy learning between relevant contexts in each science discipline may enable older students to more efficiently use energy as a tool and crosscutting concept with which to analyze complex content.     

Value orientations and motivational interference in school-leisure conflict: The case of Vietnam

The experience of motivational interference during studying and leisure in a school-leisure conflict and its relationship to pupils' value orientations were investigated in a self-report study of Vietnamese pupils (N = 346, mean age = 15 years). The results were compared with a combined sample consisting of pupils from nine other countries (N = 2155). From a cross-cultural perspective, the mean values of the variables show that Vietnamese pupils differ with regard to their values and motivational interference from pupils in other countries. Within the Vietnamese sample, modern value orientation was positively related to decision for a studying activity in a school-leisure conflict and to experience of motivational interference during a leisure activity and negatively related to interference during studying. For post-modern value orientation, the relationships were mostly reversed. Despite differences between sample means, the consistency in the relationships between the variables across the samples indicates that the pattern of relationships can be generalized.