Background: The dynamic model of educational effectiveness (DMEE) is a comprehensive theoretical framework including factors that are important for school learning, based on consistent findings within educational effectiveness research. Purpose: This study investigates the impact of teacher and school factors of DMEE on mathematics and science…

This paper presents an intervention study whose aim was to promote teacher beliefs about mathematics and learning mathematics and student competences in mathematical modeling. In the intervention, teachers received written curriculum materials about mathematical modeling. The concept underlying the materials was based on constructivist ideas and…

This study investigated how 2000 adolescents from middle-class families in six countries perceived and coped with parent-related and peer-related stress. Adolescents from Costa Rica, Korea, and Turkey perceived parent-related stress to be greater than peer-related stress, whereas stress levels in both relationship types were similar in the Czech…

In the present research, a 3 x 2 model of achievement goals is proposed and tested. The model is rooted in the definition and valence components of competence, and encompasses 6 goal constructs: task-approach, task-avoidance, self-approach, self-avoidance, other-approach, and other-avoidance. The results from 2 studies provided strong support for…

The present study analysed bullying in German adolescents with and without visual impairment. Ninety-eight adolescents with vision loss from schools for students with visual impairment, of whom 31 were blind and 67 had low vision, were compared with 98 sighted peers using a matched-pair design. Students with low vision reported higher levels of…

This study compared the achievement of developmental tasks by 158 adolescents with visual impairments to that of 158 sighted adolescents. The groups did not differ in the fulfillment of 9 of 11 tasks. However, those with visual impairments were less successful in peer-group integration and forming intimate relationships. (Contains 4 tables.)

Although a large number of different organisations offer various forest education programmes within Germany, specific information (i.e., sectoral and programme content and provision at a state level) is lacking. This study used a survey of all 61 forest education organisations (43 respondents) in the state of North Rhine-Westphalia, Germany, to…

We examined the impact of a teacher-led intervention, implemented during regular classroom instruction and homework, on fourth-grade students' preference for self-regulated learning, finding main ideas in expository texts, and reading comprehension. In our quasi-experimental study with intact classrooms, (a) students (n = 266, 12 classrooms) who…

Recent handbooks of giftedness or expertise propose a plethora of conceptions on the development of excellent performance but, to our knowledge, there are no comparative studies that provide empirical evidence of their validity to guide researchers and practitioners in their adoption of a particular conception. This study sought to close that gap…

In 2002, English-medium degree programmes (EMDPs) became a permanent feature of German higher education (HE). While this action marked an important step towards government-supported institutionalisation of English in Germany, no formal strategy or guidelines governing the role of English in HE have been developed. To date, research in this area in…

This study investigated how N = 5,126 adolescents (mean age of 15 years) from 18 countries perceive and cope with future- and school-related stress. The adolescents completed the Problem Questionnaire (PQ), which assesses stress, and the Coping Across Situations Questionnaire (CASQ), which assesses three coping styles (reflection/support-seeking,…

Background: There is still relatively little research on the social context within which bullying develops and remains stable. Aim: This study examined the short-term stability of bullying victimization among primary school students in the United Kingdom and Germany (mean age, 8.9 years) and the individual and social network factors that…

Modern socio-cognitive and meaning-oriented approaches to foreign language teaching emphasize the role of learner autonomy, which involves being aware of and responsible for one's own ways of learning as well as the utilization of one's own strengths and work on weaknesses (van Lier 1996). Allowing learners to perform self-assessment can provide a…

This study aims to develop a short German version of the Self Description Questionnaire (SDQ I-GS) in order to present a robust economical instrument for measuring German preadolescents' multidimensional self-concept. A full German version of the SDQ I (SDQ I-G) that maintained the original structure and thus length of the English original SDQ I…

This supplement contains all adaptations made by countries to the international version of the TEDS-M questionnaires under careful supervision of and approval by the TEDS-M International Study Center at Michigan State University. This information provides users of the TEDS-M International Database with a guide to evaluate the availability of…