This is a Czech version of Ostracism Online (Wolf et al., 2014) modified for purposes of my thesis. The following description tells a bit more about the original experimental method:
This is an interactive experimental paradigm, designed to manipulate feelings of social exclusion (ostracism) in an environment resembling a social media platform. The paradigm was designed by Ana Levordashka, Wouter Wolf, Johanna Ruff, and Steven Kraaijeveld (VU University), under the supervision of Prof. Dr. Kip Williams (Purdue University), and programmed by Jan-Matthis Lueckmann.
For documentation and previews visit: http://smpo.github.io/socialmedia/
Wolf, W., Levordashka, A., Ruff, J. R., Kraaijeveld, S., Lueckmann, J.-M., & Williams, K. D. (2014). Ostracism Online: A social media ostracism paradigm. Behavior Research Methods. Advance online publication. doi:10.3758/s13428-014-0475-x