Friendship Paradox

You are invited to participate in a research study, entitled “Friendship Paradox.” The study is being conducted by Rajiv Garg of The University of Texas at Austin ( and Vineet Kumar of Yale University (

The purpose of this research study is to examine the extent of diffusion of content that is shared by you versus shared by a friend recruited by you. Your participation in the study will contribute to a better understanding of social influence on online social networks like Facebook.  You are free to contact the investigators above to discuss the study.  You must be at least 18 years old to participate.

If you agree to participate:

·        You will be provided with two random links: one to be shared by you and one to be shared by your randomly selected friend on your (and their) Facebook account.

·        This activity should take no more than 5 minutes of your and your friend’s time.

·        You will be compensated with a $10 gift card from Amazon (or Starbucks) upon completion of both tasks and at the end of study period (estimated to be May 5, 2018). You are welcome to share that reward with your friend.

How to participate:

  1. You must be a current UT student and above 18 to participate. Sign up by completing a short questionnaire (
  2. Add us as friend on your Facebook (
  3. During the next 2 weeks you will get two emails from us – a “welcome to the study” email and an “action – links” email.
  4. In the “actions” email, there will be two YouTube video links; you need to share one on Facebook and your randomly selected friend needs to share the other link on Facebook.
  5. Once completed, we will send you another quick questionnaire to provide some information to validate your tasks.
  6. Within one week of completion of actions, you will receive an email from us to provide various time slots to pick up your $10 gift card from a location in McCombs School of Business.


Please contact Du Li ( or Rajiv Garg ( for any questions you may have.