Workplace Bullying and Harassment as Group Dynamic Processes: A Multilevel Approach Jose M. León-Pérez, Paula Ruiz-Zorrilla, Guy Notelaers, Elfi Baillien, Jordi Escartín, and Mirko Antino Contents 1 Introduction ................................................................................... 2 2 Group Dynamics in Workplace Bullying and Harassment .................................. 4 3 A Way Forward: Multilevel Approach in Workplace Bullying and Harassment ........... 7 3.1 Nested Data and Multilevel Analysis .................................................. 8 3.2 Steps in Developing a Multilevel Model .............................................. 12 4 Conclusion .................................................................................... 16 5 Cross-References ............................................................................. 18 6 Cross-References to Other Volumes ......................................................... 18 References ........................................................................................ 19 J. M. León-Pérez (*) Department of Social Psychology, Universidad de Sevilla, Sevilla, Spain e-mail: leonperez@us.es P. Ruiz-Zorrilla · M. Antino Department of Psychobiology and Methodology of Behavioural Sciences, Universidad Complutense de Madrid, Madrid, Spain e-mail: pauruizz@ucm.es; m.antino@psi.ucm.es G. Notelaers Department of Psychosocial Science, University of Bergen, Bergen, Norway e-mail: guy.notelaers@uib.no E. Baillien Research Center of Work and Organisation Studies, Leuven, KU, Belgium e-mail: el.baillien@kuleuven.be J. Escartín Department of Social Psychology and Quantitative Psychology, Universitat de Barcelona, Barcelona, Spain e-mail: jordiescartin@ub.edu © Springer Nature Singapore Pte Ltd. 2019 P. DCruz et al. (eds.), Concepts, Approaches and Methods, Handbooks of Workplace Bullying, Emotional Abuse and Harassment 1, https://doi.org/10.1007/978-981-10-5334-4_13-1 1