This original paper, based on data from the Erasmus+Blurred Lives Project, presents a new multi-dimensional categorisation model to describe negative online experiences, including forms of cyberbullying, based on a study of internet usage among over N = 2,500 adolescents with lower socio-economic status (SES) backgrounds across five European…

Converging evidence of high stress levels in the nursing profession as well as their detrimental effects on the execution of nursing actions, quality indicators of care, and self-reported job satisfaction justify the need for test environments that assess stress coping competences in dealing with domain-specific stress factors. Reliable and valid…

Comparison is an important geographic method and a common task in geography education. Mastering comparison is a complex competency and written comparisons are challenging tasks both for students and assessors. As yet, however, there is no set test for evaluating comparison competency nor tool for enhancing it. Moreover, little is known about…

Advanced learning technologies have become a focal point in recent educational research, holding the promise of enhancing students' self-regulated learning (SRL) by facilitating various processes of planning, monitoring, performing, and reflecting upon learning experiences. However, concerns have arisen regarding the efficacy and design of…

In recent years, mathematical models of decision making, such as the diffusion model, have been endorsed in individual differences research. These models can disentangle different components of the decision process, like processing speed, speed-accuracy trade-offs, and duration of non-decisional processes. The diffusion model estimates individual…

Analysis of data from single-case intervention studies commonly involves visual analysis. Previous research indicates that visual analysis may suffer from low reliability and unpromising error rates. We investigated the reliability and validity of visual analysis and explored to what extent data trends affect judgments. We administered a…

Moral self-concept (MSC) is an important aspect of human morality and emerges in early childhood. It indicates how early children view themselves as moral agents. Yet, its structure and developmental patterns are unclear and require more research. This study addresses if the multidimensional structure of MSC is stable during early childhood and if…

This quantitative study developed a measurement instrument, The Assessment of Historical Perspective-Taking (AHPT), to evaluate historical perspective-taking skills among 15- and 16-year-old students within their United States History classes by adapting an existing measurement instrument developed in Germany. Applying a theoretical framework that…

The inconsistency task is used to measure metacognitive monitoring in text comprehension via online (reading time) and offline measures (number of detected inconsistencies). Few studies have examined stability in task performance and interindividual differences. We addressed these issues with adolescents (N = 341) in Grades 6/7 (Mage =…

Non-formal adult education (NFE) provides adults of all ages with the opportunity to acquire skills, knowledge, and expertise. However, there is currently a lack of validated instruments that measure the factors of NFE non-participation in European countries, particularly their barriers. One exception is the Non-participation in Non-formal…

As researchers in the social sciences, we are often interested in studying not directly observable constructs through assessments and questionnaires. But even in a well-designed and well-implemented study, rapid-guessing behavior may occur. Under rapid-guessing behavior, a task is skimmed shortly but not read and engaged with in-depth. Hence, a…

Previous research provides evidence that ratings from students and external observers can deliver reliable and valid measures of teaching quality. However, there is still a lack of research on how stable these measures are across time and classes, which is particularly important when they are used for evaluations. We addressed this issue in 3…

This follow-up study presents a design-based research (DBR) setting implemented over a three-year project called 'eKidZ - Teach Your Parents Well' which uses research-based learning and follows the four phases of DBR. In an iterative cycle, 20 teenagers aged 14-16 took on the role of researchers and investigated intergenerational learning and the…

University professors' views of nature of science play an important role when guiding undergraduate students into the culture of practicing physicists. While these topics have a long-standing tradition in U.S. curricula they are not part of German educational standards or curricula. Additionally professors' views--in contrast to those of their…

Academic self-concept (ASC) is characterized by the dual nature of stability and change. That is, students strive for consistency in their self-concept but also receive achievement feedback that leads to changes in ASC. Only a few previous studies have scrutinized the stability of ASC. The STARTS model (Stable, AutoRegressive Trait, and State)…