A multidimensional adapted process model of teaching

Educational Assessment, Evaluation and Accountability - In the present study, we aimed to specify the key competence domains perceived to be critical for the teaching profession and depict them as...     

Expected reading effort in focused retrieval evaluation

This study introduces a novel framework for evaluating passage and XML retrieval. The framework focuses on a user’s effort to localize relevant content in a result document. Measuring the effort is based on a system guided reading order of documents. The effort is calculated as the quantity of text the user is expected to browse through. More specifically, this study seeks evaluation metrics for retrieval methods following a specific fetch and browse approach, where in the fetch phase documents are ranked in decreasing order according to their document score, like in document retrieval. In the browse phase, for each retrieved document, a set of non-overlapping passages representing the relevant text within the document is retrieved. In other words, the passages of the document are re-organized, so that the best matching passages are read first in sequential order. We introduce an application scenario motivating the framework, and propose sample metrics based on the framework. These metrics give a basis for the comparison of effectiveness between traditional document retrieval and passage/XML retrieval and illuminate the benefit of passage/XML retrieval.     

Vergleichbarkeit von Abiturleistungen

This article examines differences in the mathematics and English proficiency of academic-track students in Baden-Württemberg (N?=?3526) and Hamburg (N?=?3734), investigating whether and to what extent these differences are reflected in the Abitur grades the students are awarded. The article also examines the extent to which scores in centrally conducted examinations provide better comparability than do coursework grades. Multilevel analyses predicting coursework grades in mathematics revealed clear between-state differences, with students in Hamburg being awarded higher mathematics grades than comparably able students in Baden-Württemberg. These differences are partly attributable to frame of reference effects and their impact on teachers’ grading practices. No corresponding between-state differences were found for English. Mathematics examination scores provided a much better measure of student achievement than mathematics coursework grades. The findings are discussed in terms of meritocratic access to sought-after university and training places.     

Agents of responsibility in software vulnerability processes

Modern software is infested with flaws having information security aspects. Pervasive computing has made us and our society vulnerable. However, software developers do not fully comprehend what is at stake when faulty software is produced and flaws causing security vulnerabilites are discovered. To address this problem, the main actors involved with software vulnerability processes and the relevant roles inside these groups are identified. This categorisation is illustrated through a fictional case study, which is scrutinised in the light of ethical codes of professional software engineers and common principles of responsibility attribution. The focus of our analysis is on the acute handling of discovered vulnerabilities in software, including reporting, correcting and disclosing these vulnerabilities. We recognise a need for guidelines and mechanisms to facilitate further improvement in resolving processes leading to and in handling software vulnerabilities. In the spirit of disclosive ethics we call for further studies of the complex issues involved.     

Young Adults’ Trait Affection Given and Received as Functions of Hofstede’s Dimensions of Cultures and National Origin

Based on the work conducted by trait psychologists, this cross-cultural investigation sought to examine young adults’ trait affection given and trait affection received in the U.S., Russia, and Slovakia as functions of (a) Hofstede’s four primary dimensions of national cultures (i.e. masculinity–femininity, individualism–collectivism, uncertainty avoidance, and power distance), and (b) national origin. Undergraduate students (N = 558) from the U.S. (n = 214), Russia (n = 169), and Slovakia (n = 210) completed a questionnaire in their native languages. The results of regression analyses and analyses of variances supported the notion that the four dimensions of national cultures influence people’s trait-like attributes and therefore also result in significant differences among the three countries examined in this investigation.     

Changes in performance and poling kinetics during cross-country sprint skiing competition using the double-poling technique

In this study, changes in skiing performance and poling kinetics during a simulated cross-country sprint skiing competition were investigated. Twelve elite male cross-country skiers performed simulated sprint competition (4 × 1,150 m heat with 20 min recovery between the heats) using the double-poling technique. Vertical and horizontal pole forces and cycle characteristics were measured using a force plate system (20-m long) during the starting spurt, racing speed, and finishing spurt of each heat. Moreover, heat and 20-m phase velocities were determined. Vertical and horizontal pole impulses as well as mean cycle length were calculated. The velocities of heats decreased by 2.7 ± 1.7% (p = 0.003) over the simulated competition. The 20-m spurting velocity decreased by 16 ± 5% (p < 0.002) and poling time increased by 18 ± 9% (p < 0.003) in spurt phases within heats. Vertical and horizontal poling impulses did not change significantly during the simulation; however, the mean forces decreased (p < 0.039) (vertical by 24 ± 11% and horizontal by 20 ± 10%) within heats but not between the heats. Decreased heat velocities over the simulated sprint and spurting velocities within heats indicated fatigue among the skiers. Fatigue was also manifested by decreased pole force production and increased poling time.     

Correcting Measurement Error in Content Analysis

Conducting and reporting reliability tests has become a standard practice in content analytical research. However, the consequences of measurement error in coding data are rarely discussed or taken into consideration in subsequent analyses. In this article, we demonstrate how misclassification in content analysis leads to biased estimates and introduce matrix back-calculation as a simple remedy. Using Monte Carlo simulation, we investigate how different ways of collecting information about the misclassification process influence the effectiveness of error correction under varying conditions. The results show that error correction with an adequate set-up can often substantially reduce bias. We conclude with an illustrative example, extensions of the procedure, and some recommendations.     

The role of students’ interests in self-regulated learning: The relationship between students’ interests, learning strategies and causal attributions

The purpose of this research was to examine the relationship between students’ interests, their use of certain specific learning strategies and causal attributions which they made for their academic achievement. In this manner, we attempted to explore the relationships between some important variables from three different, but connected phases of self-regulated learning: the forethought phase (interests), the performance control phase (learning strategies) and the self-reflective phase (causal attributions). Results confirmed the presumption that learning strategies could be a potential mediator in the relationship between students’ interests and their academic achievement. Also, results indicate that the causal dimension of controllability could have a partial mediating role between students’ academic achievement and their interests. Generally, our findings indicate a dynamic and cyclical nature of learning process — interest is an integral part of this process and it could be conceptualized as both a consequence and an antecedent of cognitive aspects of learning.     

Simple Semantics in Topic Detection and Tracking

Topic Detection and Tracking (TDT) is a research initiative that aims at techniques to organize news documents in terms of news events. We propose a method that incorporates simple semantics into TDT by splitting the term space into groups of terms that have the meaning of the same type. Such a group can be associated with an external ontology. This ontology is used to determine the similarity of two terms in the given group. We extract proper names, locations, temporal expressions and normal terms into distinct sub-vectors of the document representation. Measuring the similarity of two documents is conducted by comparing a pair of their corresponding sub-vectors at a time. We use a simple perceptron to optimize the relative emphasis of each semantic class in the tracking and detection decisions. The results suggest that the spatial and the temporal similarity measures need to be improved. Especially the vagueness of spatial and temporal terms needs to be addressed.