Feedback from school leaders often is of low quality and not always effective. Because school leaders spend only limited time on instructional leadership activities, an intervention was developed to assist them in efficiently providing high-quality feedback to teachers. The effectiveness of the intervention was evaluated within a…

Some research has investigated the big five personality dimensions among gifted individuals, but these individual studies have provided inconclusive results. The current meta-analysis examined the nature of the relationship between the big five dimensions and giftedness among individuals. Hedge's unbiased g was used as the effect size metric, and…

Achievements in various fields of creativity are resulting more and more from collaborative teams. This research investigated the role of interpersonal process variables, namely closeness and perspective taking in group creativity, with a 2 by 2 experimental design. Sixty-one 3-person groups assigned to 4 conditions (a: closeness and perspective…

Bullying against lesbian and gay adolescents continues to be a problem in Western societies. Interventions to reduce homonegative attitudes could help to address bullying. We evaluated the effectiveness of a workshop against homonegativity in adolescents (N = 214) aged between 14 and 16 years in a pretest, posttest, follow-up design with a control…

Purpose: Unhealthy eating among adolescents from families with lower social status is a major concern. The purpose of this paper is to describe the development and evaluation of a prototype-targeting intervention for the promotion of healthy eating in this target group. Design/methodology/approach: The planning model intervention mapping (IM) was…

Proper understanding of and learning from physics phenomena and experiments requires--among other competencies--flexible and coherent use of multiple representations (MRs). These can include everything from the "enactive" or "operational" manipulation of the experimental devices and materials to the most abstract level of a…

Background: The control-value theory of achievement emotions postulates that it is possible to affect achievement emotions by decreasing or increasing control and value appraisals. This implies that changes in the latter should result in changes in the former. However, the assumption has been rarely tested. Aims: This study aimed at verifying…

Pedagogical content knowledge forms the core of teachers' professional knowledge; it refers to knowledge about making subject matter accessible to students. Thus, the formation of pedagogical content knowledge constitutes a crucial issue for educational research and practice. We investigated the contributions of content knowledge and pedagogical…

We study the effects of learning intensity and duration of high school on students' motivation, abilities and achievements at university. The empirical analysis is based on primary panel data from an education reform in the German state of Saxony-Anhalt that reduced university preparatory schooling from 13 to 12 years but left the curriculum…

The aim of the current study was to investigate the impact of private tutoring on parental involvement and the parent-child relationship. Seventy-six students voluntarily participated in the longitudinal study (38 students newly signed up for private tutoring and a matched control group). Data were collected with a student questionnaire that was…

Digital transformation has opened novel opportunities for educators to approach the challenges of educating tomorrow's business leaders and managers. New methods of instruction such as blended learning and e-learning allow to cater better to a generation of digital natives and to enhance their learning ability. In the fast-moving business world,…

The present study aims to empiricaly demonstrate the viability and benefits of an awareness-based approach to diversify knowledge between potential learning partners. Groups of four learners studied lesson material on biology. After a knowledge test, the groups were to form collaborative learning dyads. Based on the test, a novel knowledge…

Notwithstanding their relevance to children's cognitive development, home literacy activities of preschool children with migration backgrounds have only been partly explored. Therefore, the current understanding of this topic, particularly in a German setting remains incomplete. This study aimed to evaluate the differences between preschool…

Children who do not adequately master the transition from "learning to read" (LTR) to "reading to learn" (RTL) will clearly fall behind in every subject area during their secondary education. The purpose of this study was to determine whether a simple reading comprehension strategy developed by Schumaker, Denton, and Deshler…

We examine whether German children attach an adultlike relevance to the pragmatic category of polarity contrast (e.g., "In my picture the child IS eating the candies" following after "In my picture the child is not eating the candies") with linguistic expressions (i.e., the affirmative particles…