**Disentangling the Sources of Mimicry: Social Relations Analyses of the Link between Mimicry and Liking** **Abstract:** Mimicry is an important interpersonal behavior for initiating and maintaining relationships. By observing the same participants (N=139) in multiple dyadic interactions (618 data points) in a round-robin design, we disentangled the extent to which mimicry is due to (a) the mimicker's general tendency to mimic (imitativity), (b) the mimickee's general tendency to evoke mimicry (imitatability), and (c) the unique dyadic relationship between the mimicker and the mimickee. We explored how these mimicry components affected liking and metaperception of liking (i.e., meta-liking). Employing social relation models, we found substantial differences between people in imitativity, which predicted popularity. However, we found only small interindividual differences in imitatability. We found support for our proposition that mimicry is a substantially dyadic construct explained mostly by the unique relationship between two people. Finally, we explored the link between dyadic mimicry and liking, and we found that a person's initial liking of his or her interaction partner led to mimicry, which in turn increased the partner's liking of the mimicker. **Citation:** Salazar Kämpf, M., Liebermann, H., Kerschreiter, R., Krause, S., Nestler, S. & Schmukle, S. C.(2017). Disentangling the Sources of Mimicry: Social Relations Analyses of the Mimicry-Liking Link . Retrieved from osf.io/b4nvf ---------- **Contents** [Study Procedure and Coding Manual.][4] Detailed description of the study procedure, social mimicry ratings and the rater manual of social mimicry. [Data and Scripts.][1] Reproduce the analyses of the project by using the data and R scripts of the study.Includes furthermore scripts of additional analyses on gender differences. [Guide to Analyses.][3] Description on how to reproduce the main analyses of the project. ---------- Questions about the project can be directed to maike.salazarkaempf@uni-leipzig.de or schmukle@uni-leipzig.de. [1]: https://osf.io/asu4g/ [2]: http://osf.io/rfy2z/%22Outputs%22 [3]: https://osf.io/8rezp/ [4]: https://osf.io/d6n8q/