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Dissertation
Working after hours, sharing availability expectations, and interrupting yourself: Extending perspectives on ICT-related concepts in research
(2019)
This dissertation investigates Information and Communication Technologies (ICTs) and their role for recovery, well-being, and performance at work. The three empirical studies compiled in this dissertation investigate the influence of ICT work-related use at work and at home, as well as supervisors’ expectations regarding extended availability. The three main goals of the dissertation were to explore alternative ways of understanding ICT-related concepts, to identify additional factors that change their impact and the ...
Dissertation
Negative effects for coaching clients and coaches and implications for their prevention
(2018-02-28)
This dissertation is a thesis by publication, which is based on four studies. The results have been published in international peer-reviewed journals or are submitted for publication. This work introduces the overarching background and goals of this dissertation, its core findings, and how they contribute to the dissertation goals. The full-length manuscripts are presented in the end.
Background: Coaching researchers and practitioners alike call for the need of evidence-based coaching. However, evidence-based coaching ...
Dissertation
Leading for innovation: an empirical analysis of ambidextrous leadership
(2019-10)
This dissertation investigates leadership in innovation processes. Based on ambidexterity theory, the focus is on the contradictory aspects of creativity and implementation within the innovation process and how leaders can support employees in addressing them. More specifically, this dissertation takes a within-process perspective looking at the influences of leader behaviors depending on different situations within the innovation process. The ambidextrous leadership model provides concrete leader behaviors defined ...
Dissertation
On Measuring Some of the People Some of the Time with Some of the Items: The Search for Stability and Variation in Item Sets
(2019-02)
Psychological assessment is shaped by the items used and the persons assessed. Both items and persons typically represent a random or representative sample of a much larger item and person pool. However, most of the focus on psychological measurement rests on the person sampling side. Item sampling from larger item pools is still a black box. In this dissertation, I present the advantages of new state-of-the-art item and person sampling procedures in the context of personality development research (manuscript 1). ...
Dissertation
Zur klinischen Bedeutung von Geschwistererfahrungen - hat die Geschwistererfahrung einen Einfluss auf seelische Erkrankungen?
(2012-06-27)
Im Mittelpunkt der Arbeit steht die Frage, ob bei psychogenen Störungen Geschwistererfahrungen klinische Relevanz haben und ob die erfahrene Geschwisterposition und –konstellation auch im Erwachsenenalter psychodynamisch wirksam ist. Die Arbeit gliedert sich in drei Teile.
Im ersten Teil werden in einem metatheoretischen Vorgehen psychoanalytische Konzepte, psychoanalytische Entwicklungstheorien aus der Objekt- und Selbstpsychologie und empirische Forschungsergebnisse zur Geschwisterbeziehung vorgestellt. Darauf ...
Dissertation
Psychoanalytische Kurzzeittherapie zur Behandlung von Kindern mit emotionalen Störungen - Entwicklung und Evaluation eines Behandlungsmanuals
(2017-08-02)
Im Rahmen dieser Dissertation wurde ein störungsspezifisches Behandlungsmanual (PaKT) für Kinder im Alter von 4 bis 10 Jahren entwickelt, die unter Angststörungen und Depression leiden. Da dieses Therapieverfahren vorwiegend für junge Kinder mit Angst und Depressionstörungen entworfen wurde, werden im ersten Teil der Dissertation wichtige epidemiologische Daten, Überlegungen zu Äthiopathogenese und Verlauf sowie Verknüpfungen mit der psychoanalytischen Entwicklungspsychologie dargestellt. Hierbei kommen wesentliche ...
Dissertation
Förderung des Leseverständnisses durch Lesestrategien: Eine Interventionsstudie in der Grundschule
(2015-01-23)
Anliegen dieser Dissertation ist die Untersuchung des Einflusses eines Lesestrategietrainings auf die Entwicklung des Leseverständnisses in den Klassen 2 und 4. In einer experimentellen Studie mit Prä-Post-Test-Design wurde die Wirksamkeit eines 25 Sitzungen umfassenden Trainings der Strategien Vorhersagen, kleinschrittiges Wiederholen und Zusammenfassen den Effekten einer lesefernen Kontrollbedingung gegenübergestellt. Die Lesestrategien wurden peergestützt vermittelt, d. h. in Dyaden aus einem leseschwächeren und ...
Dissertation
Verbal proficiency as fitness indicator: Experimental and comparative research on the evolutionary psychology of language and verbal displays
(2011-10-26)
Summary: Recent research on the evolution of language and verbal displays (e.g., Miller, 1999, 2000a, 2000b, 2002) indicated that language is not only the result of natural selection but serves as a sexually-selected fitness indicator that is an adaptation showing an individual’s suitability as a reproductive mate. Thus, language could be placed within the framework of concepts such as the handicap principle (Zahavi, 1975). There are several reasons for this position: Many linguistic traits are highly heritable ...
Dissertation
Teaching quality in higher education: Do student evaluation of teaching questionnaires allow a reliable and valid assessment of teaching quality?
(2018-06-18)
Improving teaching quality is a relevant topic in society to nurture the students’ innate potential in the best possible way. One often applied tool for assessing teaching quality in higher education is student evaluations of teaching (SETs) that are used as a criterion for making important decisions in higher education such as employing teachers, distributing funds, and making changes in the curriculum. Despite their effect on decisions it is relatively unclear if SETs are a valid and reliable assessment of teaching ...
Dissertation
Audio-Visual Information Processing across different age groups
(2016-11-14)
People possess different sensory modalities to detect, interpret, and efficiently act upon various events in a complex and dynamic environment (Fetsch, DeAngelis, & Angelaki, 2013). Much empirical work has been done to understand the interplay of modalities (e.g. audio-visual interactions, see Calvert, Spence, & Stein, 2004). On the one hand, integration of multimodal input as a functional principle of the brain enables the versatile and coherent perception of the environment (Lewkowicz & Ghazanfar, 2009). On the ...