About the Authors
- Esther Kaufmann
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* E-mail: esther.kaufmann@gmx.ch
Affiliation Institute of Education, University of Zurich, Zurich, Switzerland
- Werner W. Wittmann
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Affiliation Otto-Selz Institute for Applied Psychology, University of Mannheim, Mannheim, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: EK WWW. Analyzed the data: EK WWW. Contributed reagents/materials/analysis tools: EK WWW. Wrote the paper: EK WWW. Literature search: EK WWW.