Lena Hahn

Lena Hahn
Universität Trier · Department of Psychology

Dr. rer. nat.

About

9
Publications
1,872
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52
Citations
Introduction
I am a social psychologist at Trier University and I am interested in cognitive conflict, network analysis, meta science and attitude formation.

Publications

Publications (9)
Preprint
Preregistering one’s hypotheses, study design, materials, and analytical pipelines aim at preventing questionable research practices by reducing researchers’ degrees of freedom and increasing transparency. Yet, the extent to which preregistrations actually achieve these goals depends on the quality of a preregistration. To scrutinize the quality of...
Article
Full-text available
In 2020, the Division of Social Psychology of the German Psychological Society (DGPs) published 11 methodological recommendations for improving the quality, replicability, and transparency of social psychological research. We evaluate these recommendations in a quantitative and qualitative survey conducted with members of the division (N = 54). Mos...
Article
Full-text available
Using validated stimulus material is crucial for ensuring research comparability and replicability. However, many databases rely solely on bidimensional valence ratings, ranging from negative to positive. While this material might be appropriate for certain studies, it does not reflect the complexity of attitudes and therefore might hamper the unam...
Article
Full-text available
Reproducible research and open science practices have the potential to accelerate scientific progress by allowing others to reuse research outputs, and by promoting rigorous research that is more likely to yield trustworthy results. However, these practices are uncommon in many fields, so there is a clear need for training that helps and encourages...
Article
Full-text available
Background: The COVID-19 pandemic has changed life around the world. To fight the pandemic, preventive measures were implemented. Despite being accepted by a majority of citizens in Germany, these measures elicited fierce protest from others. It seems that people either like or dislike them. Given the immense complexity of the topic, it is also lik...
Preprint
Full-text available
Across disciplines, researchers increasingly recognize that open science and reproducible research practices may accelerate scientific progress by allowing others to reuse research outputs and by promoting rigorous research that is more likely to yield trustworthy results. While initiatives, training programs, and funder policies encourage research...
Article
Full-text available
Many people are aware of the negative consequences of plastic use on the environment. Nevertheless, they use plastic due to its functionality. In the present paper, we hypothesized that this leads to the experience of ambivalence—the simultaneous existence of positive and negative evaluations of plastic. In two studies, we found that participants s...
Article
Eating less meat would benefit environmental sustainability, human health, and animal welfare. Providing information about this, however, does often not lead people to adopt according beliefs, attitudes or behaviors. In fact, dietary changes are often prevented by dissonance reduction (i.e. moral disengagement) if information elicits a conflict reg...

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