Child Labour and the Contribution of Working Children's Organisations in the Third World

International Review of Education -     

Effiziente Vertr?glichkeitsprüfung und automatische Migration von Workflow-Instanzen bei der Evolution von Workflow-Schemata

Sollen Workflow-Management-Systeme (WfMS) in umfassender Weise für die rechnerbasierte Verwaltung und Steuerung von Gesch?ftsprozessen einsetzbar sein, müssen die von ihnen verwalteten Workflow-Schemata und -Instanzen bei Bedarf rasch anpassbar sein. Dabei müssen die auf Basis eines (alten) Workflow-Schemas erzeugten Instanzen auch nach dessen ?nderung ungest?rt weiterlaufen k?nnen, etwa durch Bereitstellung geeigneter Versionskonzepte. Sehr viel schwieriger wird es, wenn die angewandten Schema?nderungen – wo gewünscht und m?glich – auch auf die bereits (vielleicht in gro?er Zahl) laufenden Workflow-Instanzen übertragen werden sollen. Dies bei Bedarf zu k?nnen – und zwar ohne Inkonsistenzen oder Fehler zu verursachen – ist aber ungemein wichtig, wenn ein WfMS breit und flexibel einsetzbar sein soll. In diesem Beitrag wird ein Ansatz zur effizienten Prüfung der Vertr?glichkeit von Workflow-Instanzen mit einem ge?nderten Workflow-Schema vorgestellt. Durch Einbeziehung aller Beschreibungskonstrukte (z.B. auch Schleifen und Datenflüsse) und damit zusammenh?ngender Fragestellungen wird darüber hinaus zum ersten Mal die Grundlage für ein umfassendes ?nderungsmanagement geschaffen. Au?erdem wird aufgezeigt, wie der Benutzer bei der Migration vertr?glicher Instanzen auf das neue Schema konkret unterstützt werden kann.     

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.     

Cognitive ability and personality variables as predictors of school grades and test scores in adolescents

The predictive power of cognitive ability and self-control strength for self-reported grades and an achievement test were studied. It was expected that the variables use of time structure, academic procrastination, and motivational interference during learning further aid in predicting students’ achievement because they are operative in situations of school-leisure conflict. A sample of 697 eighth-graders was tested twice within the interval of a single school year (about eight months). Cognitive ability and self-control explained substantial variance of grade changes. Procrastination displayed a further portion of the variance. Personality variables were better predictors of grades, while cognitive ability showed higher variance with the achievement test. Variables tapping aspects of self-control strength have been interpreted as key determinants of learning outcomes. The findings suggest that it might be useful to identify students who are at risk, allowing these students to train their ability to shield studying from leisure distractions.     

Evaluating an Automatically Scorable, Open-Ended Response Type for Measuring Mathematical Reasoning in Computer-Adaptive Tests

The first generation of computer-based tests depends largely on multiple-choice items and constructed-response questions that can be scored through literal matches with a key. This study evaluated scoring accuracy and item functioning for an open-ended response type where correct answers, posed as mathematical expressions, can take many different surface forms. Items were administered to 1,864 participants in field trials of a new admissions test for quantitatively oriented graduate programs. Results showed automatic scoring to approximate the accuracy of multiple-choice scanning, with all processing errors stemming from examinees improperly entering responses. In addition, the items functioned similarly in difficulty, item-total relations, and male-female performance differences to other response types being considered for the measure.