Vocabulary knowledge is one of the most important elements of reading comprehension. Text coverage is the proportion of known words in a given text. We hypothesize that text comprehension increases exponentially with text coverage due to network effects and activation of prior knowledge. In addition, the lexical threshold hypothesis states that…

The increasing number of students who lack proficient reading skills is well known in Germany, as well as globally. Students with learning disabilities (LD), problem behavior, and German as a second language (L2) may face even greater hurdles. However, it is essential for teachers to provide adequate support to maintain equal educational…

The increasing number of students with German as a second language (GL2) poses a great challenge for schools. Previous studies showed that especially young learners with a migration background are lagging behind in the acquisition of second language (L2) literacy. Experiencing problem behaviors (PB) in addition, might pose even greater challenges.…

The ability to read adequately is one of the most important skills for students to achieve during their school career. Unfortunately, a large number of children do not have adequate reading skills and thus may face problems in many respects throughout their lives. Children with learning disabilities (LD) and behavioral problems are particularly…

Previous research on the role of prior skills like proportional reasoning skills for the development of mathematical concepts offers conclusions such as "more (prior skills) is better (for later learning)." Insights, which prior skill "level" goes along with which "level" of learning outcomes, may advance the…

Being able to perform computational estimations efficiently is an important skill. Furthermore, computational estimation experiments are used to study general principles in strategy development. Rounding strategies are common in computational estimation. However, little is known about whether and when children use a mixed-rounding strategy (i.e.,…

To examine developmental processes, intervention effects, or both, longitudinal studies often aim to include measurement intervals that are equally spaced for all participants. In reality, however, this goal is hardly ever met. Although different approaches have been proposed to deal with this issue, few studies have investigated the potential…

By focusing on 179 elementary school children, the present cross-sectional questionnaire study aimed to examine gender and immigrant-native differences in competence and affect self-concepts as well as academic achievement and the relations of those two self-concept components to academic achievement in the domains of mathematics and German.…

Learning strategies can be powerful learning tools. Some studies show that even primary school students use them. However, hardly any studies have investigated the use of learning strategies of students with special needs, especially for those with emotional and behavioural disorders, in primary schools. Thus, in the present study we examined…

Deficits in phonological information processing in upper elementary students with specific learning disabilities in reading or spelling may increase, decrease, or remain stable over time. The authors examined the development of phonological processing longitudinally in 209 students (109 with learning disabilities and 100 typically achieving;…

This study examines the effects of a working memory (WM) sensitive math intervention in students with learning disabilities (LD). The intervention aims to improve early mathematical competencies while accounting for weak cognitive resources through a reduced instructional design. These principles are considered to be effective for learning. Ten…

Reading is a fundamental academic skill and influences numerous outcomes throughout lifespan. Unfortunately, many German students struggle with basic reading. Specifically, students with Learning Disabilities (LD) and Emotional Behavioural Disorders (EBD) encounter major hurdles. Consequently, insufficient reading achievement and concomitant…

Based on the finding that children with mathematical learning difficulties (MLD) have deficits in working memory (WM), the question arises as to whether these children differ from typical learners only in the level or also in the developmental trajectories of WM functioning. To this end, the WM of 80 children with MLD and 71 typical learners was…

The purpose of this experiment was to determine the effects of a simultaneous prompting procedure on the writing performance of three upper-elementary-level students diagnosed with learning disabilities (LD). Interventionists gave task directions followed by model prompts with a 0-s time delay to teach students composition. Non-targeted…

Background: Further developing students' thinking about knowledge and knowing in science (epistemic beliefs) is considered a normative goal of science education in many countries around the world, even for elementary-school-aged children. Aims: The goal of the present study was to introduce and evaluate a new intervention in science education…