Group size and personalization’s effect on Facebook message response rates

The bystander effect is one of the most well researched and replicated phenomena in social psychology. It repeatedly shows that the presence of other people inhibits the impulse to help due to the concept of diffusion of responsibility. Recently, researchers have studied this phenomenon online in the context of e-mails, internet chat rooms, and discussion forums. The results provide evidence that the presence of “virtual” others decreases the likelihood of helping behavior. Personalization is another factor that strongly influences helping behavior. Referring to a person by name when soliciting help request increases the likelihood of receiving assistance. Yet, with the most popular activity on the internet now being social media, it would be beneficial to know if diffusion of responsibility and personalization also occurs in this part of the online world. The paper aims to discuss these issues.

To investigate the validity of diffusion of responsibility as well as personalization in a social media context, 176 participants sent out one private Facebook message soliciting help in the form of an online survey to one, three, six, or nine of their Facebook friends. They greeted their friend(s) by name or just said “Hi” or “Hi all.”

Responses to the survey provided strong support for personalizing the greeting, but did not support the theory of diffusion of responsibility.

This study has many practical implications. For one, with social media being used not only by individuals but by businesses and industries, it is important to know the most effective way in eliciting help and responses from individuals. It is also beneficial for researchers as well who are increasingly using social media as a recruitment tool to find participants. This study suggests that personalizing salutations is an effective way of eliciting more responses and raises important research questions about the validity of diffusion of responsibility in online environments.

This study also has originality and value in that it provides a start for understanding helping behavior in a social media environment as well as applying relevant social psychological theories to online behavior. It highlights the similarities as well as differences between offline and online human behavior as well as highlights the importance of personalization in online requests.