The control group did not see a message on their news feed. 

- Control group

Informational message group was shown the message, the button, a counter of how many facebook friends had voted but no profile pictures . 

Arizona State University

The social message group was shown a statement on top of their news feed. This statement encouraged the user to vote, displayed profile pictures of mutual friends who claimed to vote, an 'I voted' button and information regarding polling places. 

Groups utilized in '61-million -person study'
- Social message group 

A study to test the hypothesis that online social network can influence political behaviour. 

Learn Before

Related

Learn After