@article{LambrechtBogdaKochetal.2019, author = {Lambrecht, Jennifer and Bogda, Katja and Koch, Helvi and Nottbusch, Guido and Sp{\"o}rer, Nadine}, title = {L{\"a}ngsschnittliche Effekte der h{\"a}uslichen und institutionellen Lernumwelt auf den Wortschatz von Grundschulkindern - ein Vergleich}, series = {Journal for educational research online - JERO}, volume = {11}, journal = {Journal for educational research online - JERO}, number = {2}, publisher = {Waxmann}, address = {M{\"u}nster}, issn = {1866-6671}, pages = {86 -- 115}, year = {2019}, abstract = {Es wird angenommen, dass f{\"u}r den fr{\"u}hen Kompetenzerwerb eines Kindes neben dem famili{\"a}ren Hintergrund und Merkmalen des Kindes die Lernumgebungen eine wichtige Rolle spielen. Die vorliegende Studie verfolgte das Ziel, die Effekte der h{\"a}uslichen und der institutionellen Lernumgebung von Kindergartenkindern auf den fr{\"u}hen Wortschatzerwerb zu vergleichen und notwendige Bedingungen f{\"u}r einen kompensatorischen Effekt der institutionellen Lernumgebung zu {\"u}berpr{\"u}fen. Anhand l{\"a}ngsschnittlicher Daten von N = 557 Kindergartenkindern aus dem deutschen Nationalen Bildungspanel (NEPS) wurde untersucht, in welchem Ausmaß der famili{\"a}re Hintergrund und die Merkmale eines Kindes die h{\"a}usliche und institutionelle Lernumgebung pr{\"a}dizieren und in welchem Ausmaß diese wiederum den Wortschatz in der Vorschule und in der ersten Klasse vorhersagen. Um zu {\"u}berpr{\"u}fen, ob die beiden Lernumgebungen einen jeweils eigenst{\"a}ndigen Beitrag zur Pr{\"a}diktion des Wortschatzes leisten, wurden nahezu identische Indikatoren zur Operationalisierung verwendet. Mittels Strukturgleichungsmodellierung wurden die Effekte gesch{\"a}tzt. Die Studie zeigte, dass die h{\"a}usliche und institutionelle Lernumgebung eines Kindes kleine sowie voneinander abgrenzbare Effekte auf den Wortschatz hatten. Dabei war die h{\"a}usliche Lernumwelt st{\"a}rker mit dem famili{\"a}ren Hintergrund assoziiert, w{\"a}hrend die institutionelle Lernumgebung st{\"a}rker durch Merkmale des Kindes selbst pr{\"a}diziert wurde. Dies er{\"o}ffnet neue M{\"o}glichkeiten der Diskussion kompensatorischer Effekte.}, language = {en} } @article{LambrechtBogdaKochetal.2019, author = {Lambrecht, Jennifer and Bogda, Katja and Koch, Helvi and Nottbusch, Guido and Sp{\"o}rer, Nadine}, title = {Die Rolle der Kindergartenqualit{\"a}t}, series = {Zeitschrift f{\"u}r Erziehungswissenschaft}, volume = {22}, journal = {Zeitschrift f{\"u}r Erziehungswissenschaft}, number = {3}, publisher = {Springer}, address = {Wiesbaden}, issn = {1434-663X}, doi = {10.1007/s11618-019-00872-6}, pages = {665 -- 694}, year = {2019}, abstract = {Neben famili{\"a}ren Merkmalen hat sich die Kindergartenqualit{\"a}t als bedeutsam f{\"u}r den Wortschatz von Kindergartenkindern gezeigt. Die drei Dimensionen der Kindergartenqualit{\"a}t, die Struktur‑, Orientierungs- und Prozessqualit{\"a}t, wurden bisher jedoch nicht simultan und dom{\"a}nenspezifisch in Bezug auf den Wortschatz untersucht. In der vorliegenden Studie wird der Frage nachgegangen, wie die Dimensionen der Kindergartenqualit{\"a}t unter Ber{\"u}cksichtigung famili{\"a}rer Merkmale mit dem Wortschatz von Kindern auf Individual- und Kindergartenebene zusammenh{\"a}ngen. Die Datengrundlage bildete eine Teilstichprobe des nationalen Bildungspanels („National Educational Panel Study", NEPS) mit N = 1165 Kindern in 139 Kinderg{\"a}rten. Die durchgef{\"u}hrten Mehrebenenanalysen ergaben, dass zur Pr{\"a}diktion des Wortschatzes auf Individualebene die famili{\"a}ren Merkmale bedeutsam waren, w{\"a}hrend Unterschiede zwischen Kinderg{\"a}rten mittels der Kindergartenqualit{\"a}t erkl{\"a}rt werden konnten. Dabei waren alle drei Qualit{\"a}tsdimensionen relevant. Die Ergebnisse werden vor dem Hintergrund verschiedener Qualit{\"a}tskonzeptionen diskutiert.}, language = {de} } @article{HenkeBogdaLambrechtetal.2017, author = {Henke, Thorsten and Bogda, Katja and Lambrecht, Jennifer and Bosse, Stefanie and Koch, Helvi and Maaz, Kai and Sp{\"o}rer, Nadine}, title = {Will you be my friend? A multilevel network analysis of friendships of students with and without special educational needs backgrounds in inclusive classrooms}, series = {Zeitschrift f{\"u}r Erziehungswissenschaft}, volume = {20}, journal = {Zeitschrift f{\"u}r Erziehungswissenschaft}, publisher = {Springer}, address = {Wiesbaden}, issn = {1434-663X}, doi = {10.1007/s11618-017-0767-x}, pages = {449 -- 474}, year = {2017}, abstract = {The objective of this study was to determine the relationship between having a special educational needs background (SEN) and the likelihood of having friends in inclusive classes. We assumed that a combination of individual, dyadic and contextual variables can sufficiently explain the relation between a SEN diagnosis and the likelihood of friendship. Data analysis was based on a cross-sectional sample of students (N = 1241) in second and third grade primary-school classes. To address the different levels adequately, the present study improves upon previous research in two ways: First, the sociometric data were analyzed with the p2 model, a specialized multilevel network model. Second, the study focused solely on friendships and emphasized the concept's unique features with respect to inclusive education. Data analysis indicated that students with SEN had a decreased probability of becoming friends with their classmates compared to students without SEN. Even when individual, dyadic, and contextual variables were included into the model, the association between a SEN diagnosis and the likelihood of friendship persisted. The implications of the results are discussed with respect to their implications for inclusive teaching practice.}, language = {en} } @article{KochSchaldachKoechy2008, author = {Koch, Jennifer and Schaldach, R{\"u}diger and Koechy, Martin}, title = {Modeling the impacts of grazing land management on land-use change for the Jordan River region}, doi = {10.1016/j.gloplacha.2008.09.005}, year = {2008}, abstract = {In this article, we describe a simulation method for investigating the impacts of different grazing land management strategies on the productivity of (semi-)natural vegetation and the resulting feedback on land-use change. In a first application, we analyze the effects of sustainable and intensive grazing land management in the Jordan River region. For this purpose, we adapt and use the regional version of the spatially explicit modeling framework LandSHIFT. Our simulation experiments indicate that the modeled feedback mechanism has a strong effect on the spatial extent of grazing land. Consequently, the results of our study underline that the inclusion of such feedback mechanisms in land- use models can help to represent and analyze the complex interactions between humans and the environment in a more differentiated and realistic way, but they also identify the demand for more detailed empirical data on grazing land degradation in order to further improve the explanatory power of the model.}, language = {en} } @article{SchaldachWimmerKochetal.2013, author = {Schaldach, R{\"u}diger and Wimmer, Florian and Koch, Jennifer and Volland, Jan and Geissler, Katja and K{\"o}chy, Martin}, title = {Model-based analysis of the environmental impacts of grazing management on Eastern Mediterranean ecosystems in Jordan}, series = {Journal of environmental management}, volume = {127}, journal = {Journal of environmental management}, number = {9}, publisher = {Elsevier}, address = {London}, issn = {0301-4797}, doi = {10.1016/j.jenvman.2012.11.024}, pages = {S84 -- S95}, year = {2013}, abstract = {Eastern Mediterranean ecosystems are prone to desertification when under grazing pressure. Therefore, management of grazing intensity plays a crucial role to avoid or to diminish land degradation and to sustain both livelihoods and ecosystem functioning. The dynamic land-use model LandSHIFT was applied to a case study on the country level for Jordan. The impacts of different stocking densities on the environment were assessed through a set of simulation experiments for various combinations of climate input and assumptions about the development of livestock numbers. Indicators used for the analysis include a set of landscape metrics to account for habitat fragmentation and the "Human Appropriation of Net Primary Production" (HANPP), i.e., the difference between the amount of net primary production (NPP) that would be available in a natural ecosystem and the amount of NPP that remains under human management. Additionally, the potential of the economic valuation of ecosystem services, including landscape and grazing services, as an analysis concept was explored. We found that lower management intensities had a positive effect on HANPP but at the same time resulted in a strong increase of grazing area. This effect was even more pronounced under climate change due to a predominantly negative effect on the biomass productivity of grazing land. Also Landscape metrics tend to indicate decreasing habitat fragmentation as a consequence of lower grazing pressure. The valuation of ecosystem services revealed that low grazing intensity can lead to a comparatively higher economic value on the country level average. The results from our study underline the importance of considering grazing management as an important factor to manage dry-land ecosystems in a sustainable manner.}, language = {en} }