Brauchen Jungen m?nnliche Vorbilder, um in der Schule erfolgreich zu sein?

Not just in Germany, but also in other countries of the western world, gender-specific educational success has changed within the last decades: Whereas boys showed higher educational achievements in the 1960s, today it is the girls who obtain higher educational certificates. A number of scholars have pointed to the absence of male role models in boys?? social environment (family and school) as a reason for their worsening school performance. In this article, we use data from the German Micro-census 2008 to analyze the following question: Does it make a difference for boys?? and girls?? transition to academic track secondary school (Gymnasium) whether they grow up in a nuclear family or with single-mothers or single-fathers? The results of the analyses yield no evidence for the claim that the absence of fathers in the family has a negative impact on boys?? performance at school.     

Towards an integrated model for developing sustainable assessment skills

One of the goals of current education is to ensure that graduates can act as independent lifelong learners. Graduates need to be able to assess their own learning and interpret assessment results. The central question in this article is how to acquire sustainable assessment skills, enabling students to assess their performance and learning throughout life, and preparing them to meet their own future learning needs. This article presents an integrated model for developing sustainable assessment skills, consisting of three components: conditions necessary for the development of sustainable assessment skills, elements of sustainable assessment and instructional methods for guiding students in the development of sustainable assessment skills. The article concludes with suggestions for future research to further develop the proposed model.     

Development of metacognitive skillfulness: A longitudinal study

This study shows the results of a two-year longitudinal study where the same participants were followed for two consecutive years as they enter secondary school (aged 12–14 years). The main issue was to investigate the development of both the quantity and the quality of metacognitive skills. Another issue was to establish whether the development of metacognitive skillfulness is intelligence-related or relatively intelligence-independent. Finally, the generality vs. domain-specificity of developing metacognitive skillfulness was investigated. Thirty-two secondary school students participated in this study. While thinking aloud they performed two different tasks representing two different domains: A text-studying task for history and a problem-solving task for math. Participants' intellectual ability, metacognitive skillfulness and learning performance were assessed. Results show a quantitative as well as a qualitative growth in metacognitive skillfulness. Furthermore, results of both years show that metacognitive skillfulness contributed to learning performance (partly) independent of intellectual ability. A parallel development of metacognitive and intellectual ability was found. Finally, metacognitive skills predominantly appear to be general. Domain-specific metacognitive skills, however, played a substantial, but minor role as well in both years. Instructional implications are being discussed.     

The Role of Reflection in the Effects of Community Service on Adolescent Development: A Meta‐Analysis

This meta‐analysis assessed the effect of community service on adolescent development and the moderation of this effect by reflection, community service, and adolescent characteristics to explicate the mechanisms underlying community service effects. Random effects analyses, based on 49 studies (24,477 participants, 12–20 years old), revealed that community service had positive effects on academic, personal, social, and civic outcomes. Moderation analyses indicated that reflection was essential; the effect for studies that include reflection was substantial (mean ES = .41) while community service in the absence of reflection yielded negligible benefits (mean ES = .05). Effects increased when studies include more frequent reflection and community service, reflection on academic content, and older adolescents. These findings have implications for understanding and improving community service.     

A Gentle Introduction to Bayesian Analysis: Applications to Developmental Research

Bayesian statistical methods are becoming ever more popular in applied and fundamental research. In this study a gentle introduction to Bayesian analysis is provided. It is shown under what circumstances it is attractive to use Bayesian estimation, and how to interpret properly the results. First, the ingredients underlying Bayesian methods are introduced using a simplified example. Thereafter, the advantages and pitfalls of the specification of prior knowledge are discussed. To illustrate Bayesian methods explained in this study, in a second example a series of studies that examine the theoretical framework of dynamic interactionism are considered. In the Discussion the advantages and disadvantages of using Bayesian statistics are reviewed, and guidelines on how to report on Bayesian statistics are provided.     

Acculturative Stress and Depressive Symptomatology Among Mexican and Mexican American Students in the U.S.: Examining Associations with Cultural Incongruity and Intragroup Marginalization

This study examined associations of intragroup marginalization and cultural incongruity with acculturative stress and depressive symptoms among 155 undergraduate U.S. college students of Mexican heritage. Findings indicate that perceived interpersonal distancing by the family (intragroup marginalization) and perceived lack of cultural fit between the respondent and academic institution (cultural incongruity) had statistically significant direct and indirect effects on depressive symptoms via acculturative stress. Results also show that 39.7 % of the variance corresponding with depressive symptoms was accounted for by intragroup marginalization, cultural incongruity, acculturative stress, and other exogenous variables.     

Library Abuse in Academic Institutions

Abstract

The abuse of library materials defined in terms of theft, mutilation, unauthorized borrowing and vandalism was investigated in University of Port Harcourt (Uniport) in Nigeria and King Fahd University of Petroleum and Minerals (KFUPM) in Saudi Arabia. The study sought to find out the ways the collections of the two institutions were abused by various classes of readers and for various reasons. By interviewing librarians, and analysis of collection use records, it was revealed that students, as well as faculty, staff and external readers indulged in abuse of library materials, motivated by situational, conceptual, attitudinal and other factors. It was observed, however, that Uniport had more problems with the misuse of library materials than KFUPM. Recommendations relating to library building design, tightening of security, generous and flexible loans policies, etc., were made for improved collection protection. Besides, public relations campaign and multilateral co-operation on book theft detection would help to discourage in particular the uninitiated or new converts from any acts of library abuse.     

How medical know-how progresses

The conventional wisdom regarding the source of progress in medical practice highlights the role of basic scientific research into the nature of disease pathologies. This perspective neglects the important role of two other sources of progress in medicine. One is the advance of technologies that have enabled the development of new modalities of treatment and diagnosis. The other is learning in clinical practice. In many cases the advance of treatment has involved the interaction of all three of these pathways to progress.