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Auf der Grundlage psycholinguistischer, deutsch-didaktischer und linguistischer Forschungsergebnisse wurde ein Lesetraining auf Silbenbasis entwickelt, in dem Kindern mit Leseschwierigkeiten explizit Strategien zur visuellen Gliederung von Wörtern in größere funktionale Einheiten (Silben, einzelne Wörter (bei Zusammensetzungen), Präfixe) vermittelt werden. Es wird davon ausgegangen, dass Kinder mit Leseschwierigkeiten Wörter in zu kleinen linguistischen Einheiten erlesen. Das Training basiert linguistisch auf der Schreibsilbe als funktionaler Einheit beim Lesen. Basis des Lesetrainings ist ein von Scheerer-Neumann (1981) durchgeführtes Training zur Verbesserung der Lesegenauigkeit von Grundschulkindern. Die empirische Überprüfung des Lesetrainings hatte zum einen das Ziel, die Wirksamkeit des Trainingsprogramms als solches zu überprüfen und zum anderen, ob das Training zu einer deutlich verbesserten Lesegeschwindigkeit und -genauigkeit bei Grundschulkindern der 3. und 4. Klassen führt. Das Training wurde von der Autorin ohne den Einsatz von Hilfskräften mit einer relativ kleinen Zahl von Kindern (N=11) durchgeführt, um so intensiv auf die Bedürfnisse der einzelnen Kinder eingehen und gegebenenfalls flexibel reagieren zu können. Aus organisatorischen und ethischen Gründen wurde auf eine Kontrollgruppe verzichtet. Die Wirksamkeit des Trainings wurde als Prätest-Training-Posttest-Follow-up Test-Design überprüft. Das Training umfasst 18 Einheiten (je 45 Minuten) und fand zweimal wöchentlich statt. Trainingsgruppen bestanden aus einer Dreiergruppe und einer Zweiergruppe; die anderen sechs Kinder wurden einzeln trainiert. Der Posttest nach Abschluss des Trainings zeigte deutliche Verbesserungen der Lesegeschwindigkeit und -genauigkeit, die zum Teil auch signifikant waren. Der Follow-up Test drei Monate nach Ende des Trainings zeigte weitere Verbesserungen, die ebenfalls zum Teil signifikant waren. Die Befunde sprechen dafür, dass das Trainingsprogramm geeignet ist, die Lesefähigkeit von leseschwachen Grundschulkindern der dritten und vierten Klasse zu verbessern. Die Teilnehmerzahl ist allerdings relativ gering, so dass die Ergebnisse nicht ohne weiteres auf die allgemeine Population von Kindern mit Leseschwierigkeiten übertragen werden können. Eine erneute Durchführung des Trainingsprogramms mit einer größeren Stichprobe und einer parallelisierten Kontrollgruppe, bei der die Kinder der Experimentalgruppe in größeren Gruppen trainiert werden, erscheint deshalb sinnvoll.
Early numeracy is one of the strongest predictors for later success in school mathematics (e.g., Duncan et al., 2007). The main goal of first grade mathematics teachers should therefore be to provide learning opportunities that enable all students to develop sound early numeracy skills. Developmental models, or learning progressions, can describe how early numerical understanding typically develops. Assessments that are aligned to empirically validated learning progressions can support teachers to understand their students learning better and target instruction accordingly. To date, there have been no progression-based instruments made available for German teachers to monitor their students’ progress in the domain of early numeracy. This dissertation contributes to the design of such an instrument. The first study analysed the suitability of early numeracy assessments currently used in German primary schools at school entry to identify students’ individual starting points for subsequent progress monitoring. The second study described the development of progression-based items and investigated the items in regards to main test quality criteria, such as reliability, validity, and test fairness, to find a suitable item pool to build targeted tests. The third study described the construction of the progress monitoring measure, referred to as the learning progress assessment (LPA). The study investigated the extent to which the LPA was able to monitor students’ individual learning progress in early numeracy over time. The results of the first study indicated that current school entry assessments were not able to provide meaningful information about the students’ initial learning status. Thus, the MARKO-D test (Ricken, Fritz, & Balzer, 2013) was used to determine the students’ initial numerical understanding in the other two studies, because it has been shown to be an effective measure of conceptual numerical understanding (Fritz, Ehlert, & Leutner, 2018). Both studies provided promising evidence for the quality of the LPA and its ability to detect changes in numerical understanding over the course of first grade. The studies of this dissertation can be considered an important step in the process of designing an empirically validated instrument that supports teachers to monitor their students’ early numeracy development and to adjust their teaching accordingly to enhance school achievement.
Bereits im vorschulischen Bereich, aber vor allem in der Grundschule entwickeln Kinder wichtige Kompetenzen für spätere Bildungsabschlüsse. Doch die Kompe-tenzunterschiede zwischen den Schüler:innen sind bereits zu Beginn der Grund-schulzeit beträchtlich. Somit kommt den Lehrkräften die überaus wichtige Aufga-be zu allen Kindern den für sie besten Bildungsweg zu ermöglichen. Um dieser Herausforderung zu begegnen, müssen Diagnostik und Förderung im Unterricht Hand in Hand gehen. Deshalb wird die Diagnosekompetenz von Lehrkräften als wichtige Voraussetzung für gelingenden Unterricht angesehen. Diese Dissertation widmet sich nun eben dieser wichtigen Kompetenz. Dabei wird sie als mehrdimen-sionales Konstrukt angesehen, zu dem neben der Beurteilung von fachlichen Kompetenzen auch die Einschätzung des Leistungsstandes und die Schlussfolge-rung hinsichtlich notwendiger Förderung im Unterricht gehören. Anhand dreier Artikel sowie ergänzender theoretischer Betrachtungen wurde die Diagnosekompe-tenz hinsichtlich möglicher Einflussfaktoren, der Bedeutung für den Unterricht sowie für die Lehrer:innenbildung untersucht.
The relevance of physical fitness for children’s and adolescents’ health is indisputable and it is crucial to regularly assess and evaluate children’s and adolescents’ individual physical fitness development to detect potential negative health consequences in time. Physical fitness tests are easy-to-administer, reliable, and valid which is why they should be widely used to provide information on performance development and health status of children and adolescents. When talking about development of physical fitness, two perspectives can be distinguished. One perspective is how the physical fitness status of children and adolescents changed / developed over the past decades (i.e., secular trends). The other perspective covers the analyses how physical fitness develops with increasing age due to growth and maturation processes. Although, the development of children’s and adolescents’ physical fitness has been extensively described and analyzed in the literature, still some questions remain to be uncovered that will be addressed in the present doctoral thesis.
Previous systematic reviews and meta-analyses have examined secular trends in children’s and adolescents’ physical fitness. However, considering that those analyses are by now 15 years old and that updates are available only to limited components of physical fitness, it is time to re-analyze the literature and examine secular trends for selected components of physical fitness (i.e., cardiorespiratory endurance, muscle strength, proxies of muscle power, and speed). Fur-thermore, the available studies on children’s development of physical fitness as well as the ef-fects of moderating variables such as age and sex have been investigated within a long-term ontogenetic perspective. However, the effects of age and sex in the transition from pre-puberty to puberty in the ninth year of life using a short-term ontogenetic perspective and the effect of timing of school enrollment on children’s development of physical fitness have not been clearly identified. Therefore, the present doctoral thesis seeks to complement the knowledge of children’s and adolescents’ physical fitness development by updating secular trend analysis in selected components of physical fitness, by examining short-term ontogenetic cross-sectional developmental differences in children`s physical fitness, and by comparing physical fitness of older- and younger-than-keyage children versus keyage-children. These findings provide valuable information about children’s and adolescents’ physical fitness development to help prevent potential deficits in physical fitness as early as possible and consequently ensure a holistic development and a lifelong healthy life.
Initially, a systematic review to provide an ‘update’ on secular trends in selected components of physical fitness (i.e., cardiorespiratory endurance, relative muscle strength, proxies of muscle power, speed) in children and adolescents aged 6 to 18 years was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement guidelines. To examine short-term ontogenetic cross-sectional developmental differences and to compare physical fitness of older- and younger-than-keyage children versus keyage-children physical fitness data of 108,295 keyage-children (i.e., aged 8.00 to 8.99 years), 2,586 younger-than-keyage children (i.e., aged 7.00 to 7.99 years), and 26,540 older-than-keyage children (i.e., aged 9.00 to 9.99 years) from the third grade were analyzed. Physical fitness was assessed through the EMOTIKON test battery measuring cardiorespiratory endurance (i.e., 6-min-run test), coordina-tion (i.e., star-run test), speed (i.e., 20-m linear sprint test), and proxies of lower (i.e., standing long jump test) and upper limbs (i.e., ball-push test) muscle power. Statistical inference was based on Linear Mixed Models.
Findings from the systematic review revealed a large initial improvement and an equally large subsequent decline between 1986 and 2010 as well as a stabilization between 2010 and 2015 in cardiorespiratory endurance, a general trend towards a small improvement in relative muscle strength from 1972 to 2015, an overall small negative quadratic trend for proxies of muscle power from 1972 to 2015, and a small-to-medium improvement in speed from 2002 to 2015. Findings from the cross-sectional studies showed that even in a single prepubertal year of life (i.e., ninth year) physical fitness performance develops linearly with increasing chronological age, boys showed better performances than girls in all physical fitness components, and the components varied in the size of sex and age effects. Furthermore, findings revealed that older-than-keyage children showed poorer performance in physical fitness compared to keyage-children, older-than-keyage girls showed better performances than older-than-keyage boys, and younger-than-keyage children outperformed keyage-children.
Due to the varying secular trends in physical fitness, it is recommended to promote initiatives for physical activity and physical fitness for children and adolescents to prevent adverse effects on health and well-being. More precisely, public health initiatives should specifically consider exercising cardiorespiratory endurance and muscle strength because both components showed strong positive associations with markers of health. Furthermore, the findings implied that physical education teachers, coaches, or researchers can utilize a proportional adjustment to individually interpret physical fitness of prepubertal school-aged children. Special attention should be given to the promotion of physical fitness of older-than-keyage children because they showed poorer performance in physical fitness than keyage-children. Therefore, it is necessary to specifically consider this group and provide additional health and fitness programs to reduce their deficits in physical fitness experienced during prior years to guarantee a holistic development.