This project is funded by the NSF Grants CNS-1211375, CNS-1010904, OCI-0904356, IIS-0838564, UL 1RR024146-0652, NIH CTSA award UL 1RR025741, SUL1RR025741-04S3, BCS-0940851, and Army Research Laboratory under Cooperative Agreement Number W911NF-09-2-0053. The ‘6-DoS‘ project is a web application that can be used to demonstrate the principle of ‘six degrees of separation’ as well as to study how people interact with each other through their strong and weak contacts (or close friends and acquaintances). 6-DoS has been built to be used in the form of a game. An administrator sets up the initial parameters of the game, such as the number of strong and weak contacts that the players can choose. The players choose their strong and weak contacts from within the group participating in the game. Each player is then assigned a random ‘destination player’. The players are asked to send a message through one of their contacts such that it finally reaches the destination, while also forwarding any messages that they receive, such that each message reaches its own destination. After the game, the players are ranked based on the accuracy of their decisions in choosing the recipients of their messages from their contacts, and some key statistical measures of the player network and the message flow are displayed. The game can be repeated with different parameters and the results compared. Link to the software HERE (a legacy version is here). You will need to obtain a game key from the Administrator in order to play the game. 6DoS Introduction:
How to participate:
How to set up:
Instruction Slides:
  Game Feedback: Principal Investigator: Noshir Contractor Researchers Involved: Marlon Twyman, Kyosuke Tanaka, Brent Hoagland, Matt Nicholson, Melissa Chi Developer: Harshad Gado Publications and Presentations: Tanaka, K., DeChurch, L. A., & Contractor, N. S. (2020, September 25-27). Positional and dispositional factors that predict who commits social network routing errors and who learns from them [Conference presentation]. Virtual Organizational Communication Mini Conference (OCMC) Tanaka, K., Jha, S., Gado, H., Twyman, M.D., DeChurch, L.A., & Contractor, N.S. (2018, June). 6-DoS (Six Degrees of Separation): A web-based platform to conduct small-world experiments. Paper presented at the XXXVIII Sunbelt Conference of the International Network for Social Network Analysis (INSNA), Utrecht, Netherlands. Tanaka, K., DeChurch, L., & Contractor, N. (2018, May). Origins of omission and commission errors in perceptions of group communication networks. Paper to be presented at the 68th Annual ICA conference, “Voices,” Prague, Czech Republic. Nicholson, M., Tanaka, K., Lungeanu. A., & Contractor, N. S. (2018). Creating a Framework for Evaluating the Effectiveness of Various Search Strategies in the Small-World Phenomenon. Poster presented at Northwestern University Computational Research Day, Evanston, IL, April 10. Jha, S., Tanaka. K., DeChurch, L. A., & Contractor, N. S. (2018). Network Acuity: Social Perceptions in a Small-World Experiment. Poster presented at Northwestern University Computational Research Day, Evanston, IL, April 10.   Admin Guides (*legacy version):

  Game Instructions (*legacy version):

  Videos (for a legacy version and NASA Project RED Relay):