Open Access

Die vorliegende Arbeit liefert eine erste empirische Untersuchung zum Einsatz digitaler Medien in der Aus- und Weiterbildung von Fahrlehrern und zeigt anhand einer Fallstudie zur internetgestützten Videoreflexion auf, welche Chancen, aber auch Hürden hier bestehen. Die Hauptaufgabe von Fahrlehrern ist es, Fahrschüler zu sicheren, verantwortungsvollen und umweltbewussten Verkehrsteilnehmern auszubilden. Dafür benötigen Fahrlehrer Lehrkompetenz, die sie bereits in ihrer Ausbildung erwerben sollten. Jedoch fehlen in der Fahrlehrerausbildung bislang bewährte, standardisierte Methoden der Lehrkompetenzförderung. Aus dem Kontext der Lehrerbildung ist bekannt, dass die Reflexion eigener und fremder Unterrichtsvideos eine gute Methode darstellt, die Lehrkompetenz (angehender) Lehrpersonen zu fördern. Digitale Medien ermöglichen eine schnelle und einfache Bereitstellung der Unterrichtsaufnahmen über Online-Plattform sowie eine internetgestützte Videoreflexion mittels Videoannotation. Die Implementation solcher moderner Ansätze gestaltet sich in der Praxis jedoch oft schwierig: Innerhalb einer Einrichtung müssen unterschiedliche Dimensionen, Ebenen und Einflussfaktoren berücksichtigt werden, um eine nachhaltige Implementation einer Innovation zu ermöglichen. Gerade in der Fahrlehrerausbildung stellt dies eine Herausforderung dar, weil bislang keine empirischen Erkenntnisse zum Einsatz digitaler Medien in diesem Kontext vorliegen. Vor diesem theoretisch erarbeiteten Hintergrund wird im empirischen Teil der Dissertation anhand einer qualitativen Fallstudie mit vier Fällen aus drei Ländern die Implementation der internetgestützten Videoreflexion in der Fahrlehrerausbildung untersucht. Es wird betrachtet, inwiefern sich das Konzept zum Einsatz der internetgestützten Videoreflexion in der Aus- und Weiterbildung von Fahrlehrern implementieren lässt und welcher individuelle sowie organisationale Mehrwert daraus entsteht. Die Ergebnisse der Fallstudie zeigen, dass in keinem der vier untersuchten Fälle die internetgestützte Videoreflexion nachhaltig in die Aus- und Weiterbildung von Fahrlehrern implementiert wurde, obwohl alle Beteiligten einen Mehrwert in der Videoarbeit sehen. In der Praxis zeigten sich unterschiedliche Schwierigkeiten und Hürden: Oftmals gab es keine klare Struktur der Einsatzkonzepte und keine feste Integration der Videoarbeit in den Lehrplan der Ausbildung. Darüber hinaus hat keine der beteiligten Einrichtungen ein ökonomisches Modell entwickelt und ihre Strukturen und Rahmenbedingungen dauerhaft so verändert, dass eine nachhaltige Implementation der internetgestützten Videoreflexion in die Aus- und Weiterbildung von Fahrlehrern möglich wäre. Letztendlich stellt die Struktur der Fahrlehrerausbildung eine Hürde dar: Die gesetzlichen Vorgaben lassen kaum Spielraum, neue Angebote in die Ausbildung zu integrieren, gerade wenn es um virtuelle Elemente geht.

Seit Beginn des 21. Jahrhunderts befindet sich der deutsche Bankenmarkt in einem anhaltenden Veränderungsprozess. Der damit einhergehende Strukturwandel auf Basis sich verändernder Rahmenbedingungen sowie die Auswirkungen der Finanzkrise haben zu einer beschleunigten Abnahme von Kundenloyalität geführt, die das Privatkundengeschäft von Banken vor enorme Herausforderungen stellt. Darüber hinaus weist die Bestandsaufnahme der bisherigen Forschung zu diesem Themengebiet erhebliche Defizite auf, woraus sich sowohl für die Wissenschaft als auch für die Unternehmenspraxis ein hoher Forschungsbedarf ableiten lässt. Vor diesem Hintergrund wurde das übergeordnete Ziel dieser Arbeit definiert, einen Beitrag zu leisten, um die Einflussfaktoren für den Erhalt und Aufbau von Bankloyalität besser zu verstehen und dabei insbesondere die Rolle der Reputation von Banken als Loyalitätsdeterminante zu untersuchen. Im Ergebnis werden auf Basis der Unterschiede zwischen den drei Bankensäulen im deutschen Privatkundengeschäft nach Bankengruppen differenzierte Handlungsempfehlungen für die Unternehmenspraxis abgeleitet.

According to dual-process models, human behavior is the result of an interaction between automatic and controlled processes. Although automatic processes often lead to positive results, they can also lead to severely negative consequences. The current dissertation investigated via 4 studies the effect of self-control depletion, mindsets, framing, and preference for consistency on the usage of automatic processes in decision tasks where heuristics (e.g., reinforcement heuristic) can either conflict or be aligned with Bayesian updating. In particular, Study 1 hypothesized that when a reinforcement heuristic opposed Bayesian updating, ego-depletion would influence the reliance on automatic processes. Three sub-studies (1a, 1b and 1c) were conducted using different depletion manipulations plus controls. Although the manipulation checks indicated successful ego-depletion induction, only Study 1a found the predicted effect. It seems that the ego depletion effects in complex decision-making tasks are less robust than previously reported in the literature.

This thesis is an investigation into the climate change discourse in the German networked public sphere with a focus on the climate skeptic counterpublic. It focuses in particular on the hypothesis that a polarizing discourse might lead to a fragmentation of the public sphere and the formation of echo chambers. This overarching research question of this thesis, then, asks how the climate skeptic counterpublic can potentially be integrated in the German networked public sphere and to what extent. The climate change discourse in Germany serves as a suitable example since it is heavily polarized with the mainstream being convinced that dangerous anthropogenic climate change is happening while the skeptic minority rejects the idea of a global warming and / or mankind’s responsibility. In order to understand the possible integration of the skeptic counterpublic in the networked public sphere, three studies were conducted based on the integration dimensions of similarity of discourse, connectivity and collective identity. In the first study, the German-language climate networked public sphere was mapped with a hyperlink network analysis of over 10,000 climate websites. The results show a highly polarized, almost unconnected discourse and suggest that climate skeptics could even be considered to form an echo chamber in which only climate skeptic and antagonistic messages are being shared. The second study, then, identifies several skeptic frames in the German news medias’ reporting on COP17. However, it can be concluded that climate skeptic messages are barely being included in the media coverage thus showing that skeptics are also excluded in the mass media. In the third study, 10,262 online comments of ten comment sections (four news sites, two climate skeptic blogs, two climate activist blogs, two climate science blogs) were analyzed to look at if and how connected skeptics are on the different sites. The results show that skeptics are highly active in the comment sections and account for over 40 % of the relevant comments. It is further shown that even though there is discussion between mainstream and counterpublic, users from the mainstream react highly critical to skeptic messages. In sum, this thesis shows that albeit the climate skeptic counterpublic is structurally only barely connected to the mainstream as well as excluded from the mass media, skeptics are very vocal and foster discussions over climate change and climate science. These discussions, even though characterized by the clash of two opposing beliefs, are a sign of integration and show that the fear of an echo chamber that is disconnected from other opinions and, indeed, society is premature.

Organizations that aim at delivering essential goods and services to low-income populations a the base of the pyramid increasingly blend the social welfare and the commercial logics in an effort to create financially sustainable solutions to social problems. Scholars have portrayed these cross-sectoral hybrid organizations as particularly agentic and resilient in institutionally complex settings, highlighting their ability to turn institutional voids into opportunity spaces. At the same time, the reconciliation of two antagonistic goals, namely poverty alleviation and financial value creation, as well as the multiple institutional voids that hybrid organizations face at the base of the pyramid (BoP) expose them to severe tensions. By investigating eight hybrid organizations in four countries, namely Colombia, Mexico, Kenya and South Africa, the present study contributes to a better understanding of cross-sectoral hybrid organizations in BoP settings in two ways. First, it shows that hybrid organizations not only face tensions between sector logics, but also between formal and informal, as well as between “Western-style” and “local style” strategic action fields. In settings which do not effectively provide guidance on the prioritization of social vs. financial objectives, these institutional voids manifest as tensions over goals and tensions over means in hybrid organizations. Second, the study sheds light on how field-level dynamics influence the ability of hybrid organizations to strategically employ factors that spur legitimacy advantages in an effort to turn institutional voids into opportunity spaces. Two different scenarios have been identified. One scenario refers to Colombia, Mexico and Kenya, which have been classified as fields that don’t effectively enforce a dominant sector logic concerning the legitimate way that health services should be provided to low-income populations. The present study has shown that in such fields, an organization’s logic of origin as well as the personal background of founders are factors that may spur legitimacy advantages in hybrid organizations. In effect, organizations which strategically employ these factors can select more freely from competing logics and ultimately overcome the prevailing tensions. This resonates with previous research, which has suggested that in fields with a dominant logic, hybrid organizations may take advantage of legitimacy advantages if their logic of origin corresponds to the dominant logic at the field level (Pache and Santos, 2012). However, the present study suggests that the factors leading to legitimacy advantages are more complex in fields with no effective dominant logic regarding social service provision. Here, the dominant logics among funding organizations, possible legitimacy spill-over effects from other market players, as well as the specifications of the commercial and the social welfare logics become important sources of possible legitimacy advantages. However, the study suggests that an organization’s ability to employ them strategically is dependent on their time of founding and their size. In addition to these findings, the study also provides insights on cross-sectoral hybridization in fields with a weakly enforced dominant logic, which is the second scenario that has been identified in South Africa. In particular, the study suggests that in such settings, hybrid organizations are more restricted to freely draw from competing logics, given that they face effective, normative imperatives about the goals they should pursue. However, the empirical investigation also indicates that an organization’s resource dependence structure is more influential than the encountered normative claims of audiences in health fields at the BoP. Further research is needed to refine these insights and explore cross-sectoral hybridization in social service provision fields in contexts of a weakly enforced dominant logic. Based on these findings, the author derives a range of practical recommendations that may themselves be interpreted as paradoxical. As the empirical study suggests, blended value creating hybrid organizations in Colombia, Mexico and Kenya currently face legitimacy advantages when originating from a commercial origin. The researcher is thus, on the one hand, inclined to recommend them to position themselves as commercially oriented organizations as to take advantage of the legitimacy advantages that the commercial logic currently entails. On the other hand, she cautions actors in the field of blended value creation, particularly funding entities, not to neglect the actual role of nonprofit organizations. The establishment of (health) markets that provide low-income populations in developing and emerging economies with affordable, high-quality products and services is likely to require significant unprofitable efforts. Finally, hybrid organizations in South Africa need to be more careful when adopting structures or practices from the commercial logic given the low legitimacy that this logic has in the health market at the BoP. There, organizations need to thoroughly analyze the institutional claims in the specific context of post-Apartheid South Africa.