To tag or not to tag? How to support organizing and classifying bookmarks from the Web (¿Con etiquetas o sin etiquetas? Cómo asistir en la organización y clasificación de los marcadores de páginas Web) (¿Con etiquetas o sin etiquetas? Cómo asistir en la organización y clasificación de los marcadores de páginas Web)

ABSTRACT

When searching for information on the Internet, it can be stored in a bookmarking system. The ability to organize this information in such a system depends on one’s own prior knowledge to create an appropriate classification scheme. Providing a classification system for bookmarks might support people with low prior knowledge. Even though different bookmarking systems exist, hierarchical menus and tagging are being most widely used. In the current exploratory study with 95 ninth-grade students, a 2 × 2 between-subjects design was used to investigate the influence of providing classification support (or not) for either a tagging or a hierarchical system. Results showed that despite the low familiarity with tagging systems, using a hierarchical system is not necessarily a better approach than using a tagging system to organize previously found information. Rather, a tagging system seems to yield storage of fewer but higher-quality information sources. The most important conclusion is that, despite the low familiarity with tagging systems, using a hierarchical system was not beneficial over using a tagging system to organize previously found information.     

Developing local oral reading fluency cut scores for predicting high‐stakes test performance

This study evaluated the classification accuracy of a second grade oral reading fluency curriculum‐based measure (R‐CBM) in predicting third grade state test performance. It also compared the long‐term classification accuracy of local and publisher‐recommended R‐CBM cut scores. Participants were 266 students who were divided into a calibration sample (n = 170) and two cross‐validation samples (n = 46; n = 50), respectively. Using calibration sample data, local fall, winter, and spring R‐CBM cut scores for predicting students’ state test performance were developed using three methods: discriminant analysis (DA), logistic regression (LR), and receiver operating characteristic curve analysis (ROC). The classification accuracy of local and publisher‐recommended cut scores was evaluated across subsamples. Only DA and ROC produced cut scores that maintained adequate sensitivity (≥.70) across cohorts; however, LR and publisher‐recommended scores had higher levels of specificity and overall correct classification. Implications for developing local cut scores are discussed.     

Validation of a self-perceived media competence instrument for pre-service teachers / Validación de un instrumento de autopercepción de competencia mediática para docentes en formación

Abstract

Key to guaranteeing the fundamental human rights of freedom of expression and information is the development of media competence, particularly in schools. Training teachers in the area of media competence is particularly important for developing these skills in the broader citizenry. In order to provide educators and educational policymakers with a useful diagnostic tool, we have designed a self-perception questionnaire. The questionnaire was applied to a sample of Peruvian education students (N = 501). On the one hand, the results confirm the construct’s coherence, validity and instrumental reliability. On the other hand, they allow us to propose a theoretically based update to the way in which this construct is interpreted and applied, confirming the multidimensionality of media competence. Finally, we use this empirical evidence to discuss the integral, transversal and ecological status of media competence.     

A large-scale test of the relationship between procrastination and performance using learning analytics

Abstract

Many studies have found a relationship between students’ self-reported procrastination and their grades. Few studies have used learning analytic data as a behavioural measure of procrastination in order to predict performance, and there is no systematic research on how this relationship may differ across assessments or disciplines. In this study we analyse nine years’ worth of institutional electronic submission records, a total of 73,608 assignment submissions, to examine the relationship between submission time and grades across assignments, students, courses, and disciplines in higher education. A significant negative relationship was found overall, with students who submitted closer to the deadline obtaining lower grades, however the size of the relationship was negligible, accounting for less than 1% of the variance in grades. The relationship varied significantly depending on student, assignment, course and discipline.     

The necessity of each phase of the learning cycle in teaching high school physics

The learning cycle is a method of teaching—it is also a curriculum organization principle and is derived directly from the mental functioning model invented by Piaget. Although Jean Piaget contributed to the formation of the learning cycle (Piaget, 1973), its present structure has to be attributed to Dr. Robert Karplus and the persons who developed the materials of the Science Curriculum Improvement Study (SCIS). It was through the SCIS activities that many of us learned how to develop curricula and teach with the learning cycle. The learning cycle is built upon the premise that three distinct phases are necessary in developing understanding of a concept, that those phases have a definite sequence, and each phase has a definite structure or form. The research done in testing the form variable has already been reported in this journal (Renner, Abraham, & Birnie, 1985). This report explores whether or not each learning-cycle phase is necessary in learning a concept.     

Adult and Lifelong Education for Poverty Reduction: A Critical Analysis of Contexts and Conditions

Poverty reduction is deeply implicated in structures of politics, economy, culture, and technology, from the global down to local levels. Irrespective of the particular political ideology of a nation and of the specific strategy of mobilization, adult and life-long education can and must play a significant role in reducing poverty, including preventing its inception. Yet the adult-education sector does not seem to be ready for this challenge. The present study argues that the re-education of adult educators is a dire necessity for effective poverty reduction. It also maintains that adult educators must be re-socialized in terms of their potential new roles as intellectual-activists. Only so can they work successfully towards introducing systems of adult and life-long education that are truly comprehensive and genuinely commensurate with the goals of poverty reduction.

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Zusammenfassung ERWACHSENENBILDUNG UND LEBENSLANGE BILDUNG FüR DIE VERMINDERUNG VON ARMUT: EINE KRITISCHE ANALYSE VON ZUSAMMENH?NGEN UND BEDINGUNGEN – Die Verminderung von Armut ist tief verankert in den Strukturen von Politik, Wirtschaft, Kultur und Technologie, von der globalen bis hinab zur lokalen Ebene. Ungeachtet der jeweiligen politischen Ideologie einer Nation und der spezifischen Strategie zur Mobilisierung kann und muss die Erwachsenenbildung und die lebenslange Bildung eine bedeutende Rolle dabei spielen, die Armut zu vermindern, was mit einschlie?t, ihrer Entstehung vorzubeugen. Dennoch scheint der Sektor der Erwachsenenbildung für diese Herausforderung nicht gerüstet zu sein. Die vorliegende Untersuchung legt dar, dass die Neuausbildung der Erwachsenenbildner eine unbedingte Notwendigkeit für eine wirksame Verminderung der Armut darstellt. Sie stellt auch fest, Erwachsenenbildner auf ihre m?gliche neue Rolle als Bildungsaktivisten neu vorbereitet werden müssen. Nur so k?nnen sie erfolgreich darauf hinarbeiten, Systeme von Erwachsenenbildung und lebenslanger Bildung einzuführen, die wirklich umfassend sind und den Zielen der Verminderung von Armut tats?chlich entsprechen.

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Resumen EDUCACIóN DE LAS PERSONAS ADULTAS Y DURANTE TODA LA VIDA PARA LA REDUCCIóN DE LA POBREZA: UN ANáLISIS CRíTICO DE CONTEXTOS Y CONDICIONES – La reducción de la pobreza está profundamente implicada en las estructuras de la política, la economía, la cultura y la tecnología en todos los niveles, partiendo desde niveles globales y bajando hasta los niveles locales. Independientemente de la ideología política particular de cada nación o de la estrategia específica de movilización, la educación de las personas adultas y durante toda la vida puede y debe desempe?ar un papel importante en la reducción de la pobreza e incluso en la prevención de sus comienzos. Sin embargo, el sector de la educación de las personas adultas aún no parece estar preparado para enfrentar estos retos. Este trabajo sostiene que la reeducación de los educadores adultos es imperiosamente necesaria para lograr una reducción eficaz de la pobreza. También sostiene que los educadores adultos deben ser resocializados en cuanto a sus potenciales nuevos roles como activistas intelectuales. Solamente de esa manera podrán trabajar con éxito para implantar sistemas de educación de personas adultas y durante toda la vida que sean realmente completos y que, efectivamente, cumplan con los objetivos de reducción de la pobreza.

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Résumé éDUCATION DES ADULTES ET TOUT AU LONG DE LA VIE EN FAVEUR D’UNE RE′DUCTION DE LA PAUVRETé : UNE ANALYSE CRITIQUE DES CONTEXTES ET DES CONDITIONS – La réduction de la pauvreté est profondément impliquée dans les structures de la politique, de l’économie, de la culture et de la technologie, du niveau global jusqu’aux niveaux locaux. Indépendamment de l’idéologie politique particulière d’une nation et de la stratégie spécifique de mobilisation, l’éducation des adultes et tout au long de la vie peut et doit jouer un r?le significatif dans la réduction de la pauvreté, y compris en empêchant son commencement. Cependant, le secteur de l’éducation des adultes ne semble pas être prêt pour ce défi. L’étude présente soutient que la rééducation des éducateurs d’adultes est une dure nécessité pour la réduction effective de la pauvreté. Elle maintient également que les éducateurs d’adultes doivent être resocialisés en termes de leurs nouveaux r?les potentiels en tant qu’activistes intellectuels. C’est seulement ainsi qu’ils peuvent travailler avec succès afin d’introduire des systèmes d’éducation des adultes et tout au long de la vie qui soient vraiment complets et véritablement adaptés aux objectifs de la réduction de la pauvreté.

     

Comparison of retention and extinction of a visual discrimination as an index of forgetting in mice

The retention and extinction of a visual discrimination was examined in BALB/c mice. The mice were trained to perform a go/no-go discrimination task in parallel runways. Initial training resulted in an intermediate level of performance. Testing consisted of an additional session using either retention (Experiment 1) or extinction (Experiment 2) at one of five time intervals between 1 and 30 days. It was found in Experiment 1 that forgetting progressively increased over intervals of between 14 and 30 days. In Experiment 2, extinction testing induced more impairment of performance, so that forgetting occurred earlier relative to retention testing in Experiment 1. However, in both experiments, the measure of performance by a discrimination ratio revealed the same amount of forgetting when the training-test interval was 30 days. These results define the forgetting curve for such a discrimination by mice. They are discussed in terms of possible factors involved in forgetting.     

Use of nonanatomical dolls in the sexual abuse interview

Controversy exists regarding use of anatomically detailed dolls in child sexual abuse evaluations because of concerns that such dolls may provoke false positive demonstrations of sexually explicit behavior. This study shows that children referred for medical evaluation of sexual abuse will use sexually explicit behavior to demonstrate what has happened to them with nonanatomical dolls as frequently as when they are interviewed with anatomically detailed ones. Over a two-year period, 136 children (aged 24 months to 10 years) were interviewed by the same pediatric interviewer. During the first year sexually anatomically detailed dolls (SAD) were used, and in the subsequent year nonanatomic dolls (NAD) were used. Data was analyzed according to age, sex, and demonstration of sexually explicit behavior. There were 67 children in the NAD group and 69 in the SAD group. Of the NAD group, 72% showed sexually explicit behavior compared to 68% in the SAD group. Comparisons using chi-square analysis revealed no significant differences between NAD and SAD. Results indicated that in the sexual abuse interview setting, use of sexually detailed dolls did not increase children's use of sexually explicit behavior to describe what had happened to them when compared to use of nonanatomical dolls, and that use of either type of doll provides similar information in the interview setting.     

Compatibility and Complementarity of Classroom Ecology and Didactique Research Perspectives in Physical Education

ABSTRACT

A large diversity of theoretical frameworks exists in the physical education literature. This article focuses on two of those frameworks to examine their compatibility and their complementarity. The classroom ecology paradigm concentrates on the balance between three task systems, two vectors, and programs of actions proposed by the physical education teacher and negotiated by students. The didactique research program studies the teaching and learning processes using the concepts of didactic contract and didactic milieu that focus on how the knowledge content emerges within teacher and students’ joint action. The article underlines the complementarity and the compatibility of the two frameworks when analyzing teaching and learning in physical education. It argues that the gray areas left by the classroom ecology paradigm could be filled with the insights of the didactique research program. A concise example of how the two frameworks have already been utilized is presented.