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Institut
- Fachbereich 1 (38) (entfernen)
Im Rahmen psychologischer Wissenschaftskommunikation werden Plain Language Summaries (PLS, Kerwer et al., 2021) zunehmend bedeutsamer. Es handelt sich hierbei um
zugängliche, überblicksartige Zusammenfassungen, welche das Verständnis von Lai:innen
potenziell unterstützen und ihr Vertrauen in wissenschaftliche Forschung fördern können.
Dies erscheint speziell vor dem Hintergrund der Replikationskrise (Wingen et al., 2019) sowie Fehlinformationen in Online-Kontexten (Swire-Thompson & Lazer, 2020) relevant. Die
positiven Auswirkungen zweier Effekte auf Vertrauen sowie ihre mögliche Interaktion fanden im Kontext von PLS bisher kaum Berücksichtigung: Zum einen die einfache Darstellung von Informationen (Easiness-Effekt, Scharrer et al., 2012), zum anderen ein möglichst wissenschaftlicher Stil (Scientificness-Effekt, Thomm & Bromme, 2012). Diese Dissertation hat zum Ziel, im Kontext psychologischer PLS genauere Bestandteile beider Effekte zu identifizieren und den Einfluss von Einfachheit und Wissenschaftlichkeit auf Vertrauen zu beleuchten. Dazu werden drei Artikel zu präregistrierten Online-Studien mit deutschsprachigen Stichproben vorgestellt.
Im ersten Artikel wurden in zwei Studien verschiedene Textelemente psychologischer PLS systematisch variiert. Es konnte ein signifikanter Einfluss von Fachtermini, Informationen zur
Operationalisierung, Statistiken und dem Grad an Strukturierung auf die von Lai:innen berichtete Einfachheit der PLS beobachtet werden. Darauf aufbauend wurden im zweiten Artikel vier PLS, die von Peer-Review-Arbeiten abgeleitet wurden, in ihrer Einfachheit und
Wissenschaftlichkeit variiert und Lai:innen zu ihrem Vertrauen in die Texte und Autor:innen befragt. Hier ergab sich zunächst nur ein positiver Einfluss von Wissenschaftlichkeit auf
Vertrauen, während der Easiness-Effekt entgegen der Hypothesen ausblieb. Exploratorische Analysen legten jedoch einen positiven Einfluss der von Lai:innen subjektiv wahrgenommenen Einfachheit auf ihr Vertrauen sowie eine signifikante Interaktion mit der
wahrgenommenen Wissenschaftlichkeit nahe. Diese Befunde lassen eine vermittelnde Rolle der subjektiven Wahrnehmung von Lai:innen für beide Effekte vermuten. Im letzten Artikel
wurde diese Hypothese über Mediationsanalysen geprüft. Erneut wurden zwei PLS
präsentiert und sowohl die Wissenschaftlichkeit des Textes als auch die der Autor:in manipuliert. Der Einfluss höherer Wissenschaftlichkeit auf Vertrauen wurde durch die
subjektiv von Lai:innen wahrgenommene Wissenschaftlichkeit mediiert. Zudem konnten
dimensionsübergreifende Mediationseffekte beobachtet werden.
Damit trägt diese Arbeit über bestehende Forschung hinaus zur Klärung von Rahmenbedingungen des Easiness- und Scientificness-Effektes bei. Theoretische
Implikationen zur zukünftigen Definition von Einfachheit und Wissenschaftlichkeit, sowie
praktische Konsequenzen hinsichtlich unterschiedlicher Zielgruppen von
Wissenschaftskommunikation und dem Einfluss von PLS auf die Entscheidungsbildung von
Lai:innen werden diskutiert.
Why they rebel peacefully: On the violence-reducing effects of a positive attitude towards democracy
Under the impression of Europe’s drift into Nazism and Stalinism in the first half of the 20th century, social psychological research has focused strongly on dangers inherent in people’s attachment to a political system. The dissertation at hand contributes to a more differentiated perspective by examining violence-reducing aspects of political system attachment in four consecutive steps: First, it highlights attachment to a social group as a resource for violence prevention on an intergroup level. The results suggest that group attachment fosters self-control, a well-known protective factor against violence. Second, it demonstrates violence-reducing influences of attachment on a societal level. The findings indicate that attachment to a democracy facilitate peaceful and prevent violent protest tendencies. Third, it introduces the concept of political loyalty, defined as a positive attitude towards democracy, in order to clarify the different approaches of political system attachment. A set of three studies show the reliability and validity of a newly developed political loyalty questionnaire that distinguishes between affective and cognitive aspects. Finally, the dissertation differentiates former findings with regard to protest tendencies using the concept of political loyalty. A set of two experiments show that affective rather than cognitive aspects of political loyalty instigate peaceful protest tendencies and prevent violent ones. Implications of this dissertation for political engagement and peacebuilding as well as avenues for future research are discussed.
Early life adversity (ELA) poses a high risk for developing major health problems in adulthood including cardiovascular and infectious diseases and mental illness. However, the fact that ELA-associated disorders first become manifest many years after exposure raises questions about the mechanisms underlying their etiology. This thesis focuses on the impact of ELA on startle reflexivity, physiological stress reactivity and immunology in adulthood.
The first experiment investigated the impact of parental divorce on affective processing. A special block design of the affective startle modulation paradigm revealed blunted startle responsiveness during presentation of aversive stimuli in participants with experience of parental divorce. Nurture context potentiated startle in these participants suggesting that visual cues of childhood-related content activates protective behavioral responses. The findings provide evidence for the view that parental divorce leads to altered processing of affective context information in early adulthood.
A second investigation was conducted to examine the link between aging of the immune system and long-term consequences of ELA. In a cohort of healthy young adults, who were institutionalized early in life and subsequently adopted, higher levels of T cell senescence were observed compared to parent-reared controls. Furthermore, the results suggest that ELA increases the risk of cytomegalovirus infection in early childhood, thereby mediating the effect of ELA on T cell-specific immunosenescence.
The third study addresses the effect of ELA on stress reactivity. An extended version of the Cold Pressor Test combined with a cognitive challenging task revealed blunted endocrine response in adults with a history of adoption while cardiovascular stress reactivity was similar to control participants. This pattern of response separation may best be explained by selective enhancement of central feedback-sensitivity to glucocorticoids resulting from ELA, in spite of preserved cardiovascular/autonomic stress reactivity.
When humans encounter attitude objects (e.g., other people, objects, or constructs), they evaluate them. Often, these evaluations are based on attitudes. Whereas most research focuses on univalent (i.e., only positive or only negative) attitude formation, little research exists on ambivalent (i.e., simultaneously positive and negative) attitude formation. Following a general introduction into ambivalence, I present three original manuscripts investigating ambivalent attitude formation. The first manuscript addresses ambivalent attitude formation from previously univalent attitudes. The results indicate that responding to a univalent attitude object incongruently leads to ambivalence measured via mouse tracking but not ambivalence measured via self-report. The second manuscript addresses whether the same number of positive and negative statements presented block-wise in an impression formation task leads to ambivalence. The third manuscript also used an impression formation task and addresses the question of whether randomly presenting the same number of positive and negative statements leads to ambivalence. Additionally, the effect of block size of the same valent statements is investigated. The results of the last two manuscripts indicate that presenting all statements of one valence and then all statements of the opposite valence leads to ambivalence measured via self-report and mouse tracking. Finally, I discuss implications for attitude theory and research as well as future research directions.
Optimal mental workload plays a key role in driving performance. Thus, driver-assisting systems that automatically adapt to a drivers current mental workload via brain–computer interfacing might greatly contribute to traffic safety. To design economic brain computer interfaces that do not compromise driver comfort, it is necessary to identify brain areas that are most sensitive to mental workload changes. In this study, we used functional near-infrared spectroscopy and subjective ratings to measure mental workload in two virtual driving environments with distinct demands. We found that demanding city environments induced both higher subjective workload ratings as well as higher bilateral middle frontal gyrus activation than less demanding country environments. A further analysis with higher spatial resolution revealed a center of activation in the right anterior dorsolateral prefrontal cortex. The area is highly involved in spatial working memory processing. Thus, a main component of drivers’ mental workload in complex surroundings might stem from the fact that large amounts of spatial information about the course of the road as well as other road users has to constantly be upheld, processed and updated. We propose that the right middle frontal gyrus might be a suitable region for the application of powerful small-area brain computer interfaces.
The present dissertation was developed to emphasize the importance of self-regulatory abilities and to derive novel opportunities to empower self-regulation. From the perspective of PSI (Personality Systems Interactions) theory (Kuhl, 2001), interindividual differences in self-regulation (action vs. state orientation) and their underlying mechanisms are examined in detail. Based on these insights, target-oriented interventions are derived, developed, and scientifically evaluated. The present work comprises a total of four studies which, on the one hand, highlight the advantages of a good self-regulation (e.g., enacting difficult intentions under demands; relation with prosocial power motive enactment and well-being). On the other hand, mental contrasting (Oettingen et al., 2001), an established self-regulation method, is examined from a PSI perspective and evaluated as a method to support individuals that struggle with self-regulatory deficits. Further, derived from PSI theory`s assumptions, I developed and evaluated a novel method (affective shifting) that aims to support individuals in overcoming self-regulatory deficits. Thereby affective shifting supports the decisive changes in positive affect for successful intention enactment (Baumann & Scheffer, 2010). The results of the present dissertation show that self-regulated changes between high and low positive affect are crucial for efficient intention enactment and that methods such as mental contrasting and affective shifting can empower self-regulation to support individuals to successfully close the gap between intention and action.
Ein positiver Zusammenhang von Leistungsmotivation, Flow und Wohlbefinden ist in Einzelpfaden gut belegt. Befunde, welche alle drei Variablen miteinander in Beziehung setzen, stehen in der Bildungsfor-schung noch aus. Ziel dieser Arbeit ist es, den Einfluss einzelner Dimensionen von Leistungsmotivation & Flow auf das subjektive Wohlempfinden von Schüler/innen, unter Berücksichtigung etwaiger Media-tionseffekte durch Flow zu untersuchen. Die Grundlage der Daten bildet der erste Messzeitpunkt einer motivationsbezogenen Interventionsstudie.
Erhoben wurden die Daten im Rahmen einer prospektiven randomisierten Längsschnittstudie im Kon-trollgruppendesign (N=742; 46,2% weibl.), welche mit Schüler/innen von sieben rheinland-pfälzischen Schulen durchgeführt wurde. Leistungsmotivation, Wohlbefinden und Flow wurden mit folgenden In-strumenten erfasst: Petermann & Winkel (2007a&b): Fragebogen zur Leistungsmotivation; Flow-Skala (in Anlehnung an Rheinberg et al., 2003); Flourishing-Skala (in Anlehnung an Diener et al., 2009). Ausge-wertet wurden die Daten mittels Mediatoranalysen per multipler Regression mit SPSS.
Die Ergebnisse multipler Regressionsanalysen konnten sowohl in der Primar-, als auch Sekundarstufe direkte Effekte einzelner Leistungsmotivationsskalen auf das subjektive Wohlbefinden belegen. Zudem wurden in den Jahrgansstufen 2&3,4&5,7&9 der Zusammenhang zwischen Leistungsmotivation und Wohlbefinden durch Flow-Erleben mediiert. In der Jahrgangsstufe 11 konnte kein Mediationseffekt gefunden werden.
Die Ergebnisse bestätigen vorliegende Korrelationsstudien und identifizieren Flow als einen zentralen Mediator zwischen der Leistungsmotivation und dem Wohlbefinden bei Schüler/innen. Die Reflexion dieser Befunde eröffnet großes Potential für die weitere Ausarbeitung und Implementierung Flow-förderlicher Interaktionen in der Schule.
Academic achievement is a central outcome in educational research, both in and outside higher education, has direct effects on individual’s professional and financial prospects and a high individual and public return on investment. Theories comprise cognitive as well as non-cognitive influences on achievement. Two examples frequently investigated in empirical research are knowledge (as a cognitive determinant) and stress (as a non-cognitive determinant) of achievement. However, knowledge and stress are not stable, what raises questions as to how temporal dynamics in knowledge on the one hand and stress on the other contribute to achievement. To study these contributions in the present doctoral dissertation, I used meta-analysis, latent profile transition analysis, and latent state-trait analysis. The results support the idea of knowledge acquisition as a cumulative and long-term process that forms the basis for academic achievement and conceptual change as an important mechanism for the acquisition of knowledge in higher education. Moreover, the findings suggest that students’ stress experiences in higher education are subject to stable, trait-like influences, as well as situational and/or interactional, state-like influences which are differentially related to achievement and health. The results imply that investigating the causal networks between knowledge, stress, and academic achievement is a promising strategy for better understanding academic achievement in higher education. For this purpose, future studies should use longitudinal designs, randomized controlled trials, and meta-analytical techniques. Potential practical applications include taking account of students’ prior knowledge in higher education teaching and decreasing stress among higher education students.
In light of an alarming increase of sick leave and early retirement because of mental diseases, the public, political and scientific interest in an effective protection of psychological health within organizational context has been increasing for years. More and more the focus is especially on executives who influence the mental health of their employees by leadership behavior within interactions and by designing work tasks and working pro-cesses. In this regard classical and modern, explicit health-oriented leadership approaches provide valuable insights but also neglect the important influence of leadership situation on health-oriented leadership. This situation reduces the explanatory and predictive potential of available health-oriented leadership concepts.
In article 1 a conceptual framework model called Systemic Salutogenic Interaction Model (SSIM) is developed and justified that is based on findings of evidence-based leadership research but also integrates systemic concepts and key elements of the theory of saluto-genesis. The SSIM distinguishes between two levels: Within the primary system of salutogenic interaction salutogenic leadership and employees behavior for the first time are conceptualized as recipocal influence factors that influence each other (level 1). The organizational context is explicitly taken into account as significant factor outside the primary system that effects the behavior of both interaction partners mediated via cognitive pro-cesses (level 2). Due to this focus on interactions und context factors for the first time leadership situation becomes an explicit component of a health-oriented leadership concept.
First of all, article 2 focusses on the systematic analysis of the relative importance health related leadership aspects. For this purpose the TIMP-inventory was developed that records three distinct core-factors of salutogenic leadership (trust, incident management and pressure) which explain more variance of the Work-SoC construct than established general approaches and health-related leadership concepts.
In article 3 the results of a cross-sectional multilevel analysis indicate that the perceived leadership situation significantly explains variance of salutogenic leadership between teams. For the first time, this shows a significant correlation between specific aspects of leadership situation und salutogenic leadership behavior.
Within the frame of a quasi-experimental study (article 4), for the first time, a correlation is shown between salutogenic target-setting processes on executive’s side and the Work-SoC of team members. These results support an essential effect mechanism that is postulated in the SSIM. Furthermore these findings indicate that the SSIM can profitably be used within the context of salutogenic coachings, underlining its practical benefit.
Taken together the empirical findings of this dissertation support the assumption that the new SSIM approach significantly expands the explanatory und predictive potential of the health-oriented leadership concepts so far available. The results also raise a number of new, interesting questions for future research. Furthermore the SSIM broadens the perspective regarding the strategic orientation of human resource and organizational devel-opment. Especially out of the SSIM important guiding principles and innovative concepts for a target-oriented diagnostic und effective interventions can be derived. Thus this dissertation lays the foundation for a coherent, holistic oriented salutogenic leadership research und practice.
Knowledge acquisition comprises various processes. Each of those has its dedicated research domain. Two examples are the relations between knowledge types and the influences of person-related variables. Furthermore, the transfer of knowledge is another crucial domain in educational research. I investigated these three processes through secondary analyses in this dissertation. Secondary analyses comply with the broadness of each field and yield the possibility of more general interpretations. The dissertation includes three meta-analyses: The first meta-analysis reports findings on the predictive relations between conceptual and procedural knowledge in mathematics in a cross-lagged panel model. The second meta-analysis focuses on the mediating effects of motivational constructs on the relationship between prior knowledge and knowledge after learning. The third meta-analysis deals with the effect of instructional methods in transfer interventions on knowledge transfer in school students. These three studies provide insights into the determinants and processes of knowledge acquisition and transfer. Knowledge types are interrelated; motivation mediates the relation between prior and later knowledge, and interventions influence knowledge transfer. The results are discussed by examining six key insights that build upon the three studies. Additionally, practical implications, as well as methodological and content-related ideas for further research, are provided.