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Dissertation
Dynamics of Norms in Decision-Making
(2024-01)
So far, there is a lack of understanding how norms change. The aim of the present dissertation was twofold: (1) addressing differences between change processes of different types of norms and (2) focusing more particularly on how norms are internalized. To study norm dynamics, a multi-method approach was chosen, combining theory, social simulation, and experimental research. In the theoretical contribution, a psychologically grounded conceptual model of norm change and decision-making was presented. Based on a refined ...
Dissertation
Risk Communication during the COVID-19 Pandemic
(2024)
In this PhD project it was aimed to learn about the potential and the challenges of risk communication in systemic risks by conducting applied research during the COVID-19 pandemic. Risk communication plays a crucial role in mitigating these risks by addressing risk beliefs in the population and thereby stimulating behavior change. In the synapsis of this project, however, the prevalence of heterogenous prior risk beliefs in different groups of the population were identified as a major challenge for risk communication ...
Dissertation
Investigating distributed practice as a strategy for school students learning mathematics
(2018-09)
Spacing or distributed practice is a prominent learning strategy that is related to the so-called desirable difficulties. With distributed practice, a given learning duration is interrupted by at least one break of variable length. In contrast, with massed practice the same total time is spent learning, but without interruption. There is a rich body of empirical evidence proving the positive effect of distributed practice on the retention of verbal material. Beyond rote memory, however, the empirical grounds regarding ...
Dissertation
Learning through Self-Explanation
(2023)
In this dissertation, the effectiveness of learning through self-explanation was examined through a series of experiments. The primary focus was on the acquisition of factual knowledge. Learners' self-explanations were coded and categorized into correct inferences, correct paraphrases, and false utterances.
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 ...
Dissertation
Die Wirksamkeit chronischer und akuter sportlicher Aktivität auf die kognitiven Fähigkeiten von Vorschulkindern
(2016-10-26)
Die vorliegende Dissertation untersucht zum einen Zusammenhänge zwischen körperlicher Aktivität, den motorischen Fähigkeiten und den kognitiven Fähigkeiten von 5- bis 6-Jährigen (Studien 1 und 3). Zum anderen wurde für diese Altersgruppe die Wirkung langfristiger (Stu-die 1: N = 81) und einmaliger koordinativer und ausdauerorientierter Interventionen (Studie 2: N = 170; Studie 3: N = 135) auf die kognitiven Fähigkeiten überprüft. Vor und nach den je-weiligen Interventionen wurden die kognitiven Fähigkeiten erhoben ...
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
Der Einfluss eines operanten Therapieverfahrens zur Behandlung frühkindlichen Stotterns bei deutschsprachigen Kindern
(2006-07-24)
Kindliches Stottern ist eine Störung des Sprechablaufs mit unbekannter Ätiologie, die im Verlauf der Sprachentwicklung beginnt und bei ungefähr 5% aller Kinder auftritt. Im deutschsprachigen Raum gibt es zum jetzigen Zeitpunkt kein Therapieverfahren zur Behandlung kindlichen Stotterns, dessen Therapie-Effekte empirisch gesichert sind. Darüber hinaus wurden bisher kaum Forschungsprojekte zum Stottern im Kindesalter durchgeführt. Ziel dieses von Juni 2003 bis Mai 2005 an der Universitätsklinik Frankfurt durchgeführten ...