We examined the structure of domain-specific academic science vocabulary, general academic vocabulary, and conceptual science knowledge and their impact on each other across two measurement points in a sample of 388 German third graders. Results show that the three constructs can be empirically differentiated. The high latent correlation between…

Orthographic knowledge (i.e., the knowledge of conventions of a written language) has been identified as a predictor of both basic and higher-level reading processes, however, mostly examined in a cross-sectional design. It remains unclear, whether and how orthographic knowledge contributes uniquely in explaining differences in the acquisition of…

Interleaved practice combined with comparison prompts can better foster students' adaptive use of subtraction strategies compared to blocked practice. It has not been previously investigated whether all students benefit equally from these teaching approaches. While interleaving subtraction tasks prompts students' attention to the different task…

There are contradictory findings in the literature about prosodic sensitivity's contribution to reading. In this study, we examined whether prosodic sensitivity makes a unique contribution to different reading outcomes in German after controlling for the effects of phonological awareness. Word reading, nonword reading and sentence reading as well…

Demonstrating the differential effectiveness of instructional approaches for learners is difficult because learners differ on multiple dimensions. The present study tests a person-centered approach to investigating differential effectiveness, in this case of reading instruction. In N = 517 German third-grade students, latent profile analysis…

Writing can be a challenging task for students--especially for those who have grown up as second language (L2) learners. In particular, planning and structuring written content can be especially difficult for them. For this reason, the effects of a combined strategy instruction intervention consisting of a graphic organizer and storytelling on the…

The perception and manipulation of spatial information are essential for mathematical learning, and research highlights gender differences in spatial abilities. The present study contributes to the question of whether these differences are evident at earlier ages and how they interact with task complexity in mental rotation. We developed the…

Measurement estimation skills are relevant for our everyday life and should be addressed in the mathematics classroom. Although students' measurement estimation skills were examined in several empirical studies, a structure model to describe these skills is still missing. The current research aimed at analyzing the structure of length estimation…

Discrepancies among family members' ratings on aspects of family functioning are challenging both, methodological and interpretational. Family members' perspectives and their discrepancies are indicators of family functioning, affecting adolescents' psychological development. Previous research focused on linear effects, ignoring that rather…

Participation is one key element of inclusive education. While the inclusion rate in German schools is rising, little is known with regard to children's participation in this context. This study examines the participation of children with and without impairments at three inclusive primary schools in Bavaria. Cross-sectional data was collected in…

Technologies that enable individualization for students have significant potential in special education. Computerized Adaptive Testing (CAT) refers to digital assessments that automatically adjust their difficulty level based on students' abilities, allowing for personalized, efficient, and accurate measurement. This article examines whether CAT…

Inquiry-based science instruction has been proposed as an optimal learning environment for language-integrated teaching. While its potential for developing both content knowledge and language skills has been shown for students with limited language proficiency, research focusing on mainstream classrooms has mainly considered domain-specific…

Studies on the relation between children's reading motivation and early developmental stages of reading competence are rare and have neglected on-line measures of reading skill (e.g., eye movements indicating word decoding). For this reason, we investigated the effects of intrinsic and extrinsic reading motivation on the efficiency of reading…

Academic language and its associations with school success have been established in many prior studies. However, the scholarship lacks research on the mechanisms that constitute these relations. This study investigates the mediating role of motivational-­affective variables, specifically reading self-concept and reading enjoyment, in relations…

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.…